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1031020221310 = 25103102022131
BaseRepresentation
bin11110000000011011001…
…10000001001101111110
310122120020120102221101121
433000031212001031332
5113343012134040220
62105351045301154
7134326433166022
oct17001546011576
93576216387347
101031020221310
11368287044332
1214799a7047ba
13762bcb2ab91
1437c8a184382
151bc44c17eaa
hexf00d98137e

1031020221310 has 8 divisors (see below), whose sum is σ = 1855836398376. Its totient is φ = 412408088520.

The previous prime is 1031020221299. The next prime is 1031020221311. The reversal of 1031020221310 is 131220201301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10310202213102 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031020221311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51551011056 + ... + 51551011075.

It is an arithmetic number, because the mean of its divisors is an integer number (231979549797).

Almost surely, 21031020221310 is an apocalyptic number.

1031020221310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031020221310 is a deficient number, since it is larger than the sum of its proper divisors (824816177066).

1031020221310 is a wasteful number, since it uses less digits than its factorization.

1031020221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103102022138.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1031020221310 its reverse (131220201301), we get a palindrome (1162240422611).

The spelling of 1031020221310 in words is "one trillion, thirty-one billion, twenty million, two hundred twenty-one thousand, three hundred ten".

Divisors: 1 2 5 10 103102022131 206204044262 515510110655 1031020221310