100862471531 has 2 divisors, whose sum is σ = 100862471532. Its totient is φ = 100862471530.

The previous prime is 100862471513. The next prime is 100862471557. The reversal of 100862471531 is 135174268001.

Together with previous prime (100862471513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100862471531 is a prime.

It is a super-2 number, since 2×100862471531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100862473531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50431235765 + 50431235766.

It is an arithmetic number, because the mean of its divisors is an integer number (50431235766).

Almost surely, 2^100862471531 is an apocalyptic number.

100862471531 is a deficient number, since it is larger than the sum of its proper divisors (1).

100862471531 is an equidigital number, since it uses as much as digits as its factorization.

100862471531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 100862471531 in words is "one hundred billion, eight hundred sixty-two million, four hundred seventy-one thousand, five hundred thirty-one".