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1031102121010 = 251389211422363
BaseRepresentation
bin11110000000100100111…
…10011100010000110010
310122120110021112212122211
433000102132130100302
5113343144120333020
62105403132522334
7134331446263453
oct17002236342062
93576407485584
101031102121010
113683192a2835
12147a020203aa
1376303aa4b40
1437c96dc312a
151bc4bee485a
hexf01279c432

1031102121010 has 64 divisors (see below), whose sum is σ = 2030793690240. Its totient is φ = 374651988480.

The previous prime is 1031102120989. The next prime is 1031102121019. The reversal of 1031102121010 is 101212011301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1031102121019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2230089 + ... + 2652451.

It is an arithmetic number, because the mean of its divisors is an integer number (31731151410).

Almost surely, 21031102121010 is an apocalyptic number.

1031102121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031102121010 is a deficient number, since it is larger than the sum of its proper divisors (999691569230).

1031102121010 is a wasteful number, since it uses less digits than its factorization.

1031102121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422683.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1031102121010 its reverse (101212011301), we get a palindrome (1132314132311).

The spelling of 1031102121010 in words is "one trillion, thirty-one billion, one hundred two million, one hundred twenty-one thousand, ten".

Divisors: 1 2 5 10 13 26 65 89 130 178 211 422 445 890 1055 1157 2110 2314 2743 5486 5785 11570 13715 18779 27430 37558 93895 187790 244127 422363 488254 844726 1220635 2111815 2441270 4223630 5490719 10981438 27453595 37590307 54907190 75180614 89118593 178237186 187951535 375903070 445592965 488673991 891185930 977347982 1158541709 2317083418 2443369955 4886739910 5792708545 7931554777 11585417090 15863109554 39657773885 79315547770 103110212101 206220424202 515551060505 1031102121010