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1020312013103 = 67137311091433
BaseRepresentation
bin11101101100011110101…
…01011100100100101111
310121112121022001121020122
432312033111130210233
5113204044333404403
62100420323235155
7133500166005065
oct16661725344457
93545538047218
101020312013103
11363791593a89
121458b0518abb
13752a44b91c6
1437551d4c035
151b819ab5838
hexed8f55c92f

1020312013103 has 8 divisors (see below), whose sum is σ = 1036294861488. Its totient is φ = 1004351350464.

The previous prime is 1020312013081. The next prime is 1020312013129. The reversal of 1020312013103 is 3013102130201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020312013103 - 214 = 1020311996719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020312013603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5453726 + ... + 5637707.

It is an arithmetic number, because the mean of its divisors is an integer number (129536857686).

Almost surely, 21020312013103 is an apocalyptic number.

1020312013103 is a deficient number, since it is larger than the sum of its proper divisors (15982848385).

1020312013103 is a wasteful number, since it uses less digits than its factorization.

1020312013103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092873.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1020312013103 its reverse (3013102130201), we get a palindrome (4033414143304).

The spelling of 1020312013103 in words is "one trillion, twenty billion, three hundred twelve million, thirteen thousand, one hundred three".

Divisors: 1 67 1373 91991 11091433 743126011 15228537509 1020312013103