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102811460831 is a prime number
BaseRepresentation
bin101111111000000001…
…0100110010011011111
3100211101002220100110122
41133300002212103133
53141024213221311
6115121514225155
710266522666212
oct1376002462337
9324332810418
10102811460831
113a669431252
1217b134251bb
139906120431
144d945c9779
152a1ae8a0db
hex17f00a64df

102811460831 has 2 divisors, whose sum is σ = 102811460832. Its totient is φ = 102811460830.

The previous prime is 102811460819. The next prime is 102811460849. The reversal of 102811460831 is 138064118201.

It is a weak prime.

It is an emirp because it is prime and its reverse (138064118201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102811460831 - 230 = 101737719007 is a prime.

It is a super-2 number, since 2×1028114608312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102811460791 and 102811460800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102811460131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51405730415 + 51405730416.

It is an arithmetic number, because the mean of its divisors is an integer number (51405730416).

Almost surely, 2102811460831 is an apocalyptic number.

102811460831 is a deficient number, since it is larger than the sum of its proper divisors (1).

102811460831 is an equidigital number, since it uses as much as digits as its factorization.

102811460831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 102811460831 in words is "one hundred two billion, eight hundred eleven million, four hundred sixty thousand, eight hundred thirty-one".