99280100031 has 16 divisors (see below), whose sum is σ = 152388228864. Its totient is φ = 56317385664.

The previous prime is 99280100027. The next prime is 99280100053. The reversal of 99280100031 is 13000108299.

It is not a de Polignac number, because 99280100031 - 2² = 99280100027 is a prime.

It is a super-2 number, since 2×99280100031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99280099965 and 99280100001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99280100021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17251225 + ... + 17256978.

It is an arithmetic number, because the mean of its divisors is an integer number (9524264304).

Almost surely, 2^99280100031 is an apocalyptic number.

99280100031 is a deficient number, since it is larger than the sum of its proper divisors (53108128833).

99280100031 is a wasteful number, since it uses less digits than its factorization.

99280100031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34508350.

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 99280100031 in words is "ninety-nine billion, two hundred eighty million, one hundred thousand, thirty-one".