99131023111 has 8 divisors (see below), whose sum is σ = 104878136880. Its totient is φ = 93436878528.

The previous prime is 99131023097. The next prime is 99131023157. The reversal of 99131023111 is 11132013199.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99131023111 is a prime.

It is a super-2 number, since 2×99131023111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99131023181) 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, 13238446 + ... + 13245931.

It is an arithmetic number, because the mean of its divisors is an integer number (13109767110).

Almost surely, 2^99131023111 is an apocalyptic number.

99131023111 is a deficient number, since it is larger than the sum of its proper divisors (5747113769).

99131023111 is a wasteful number, since it uses less digits than its factorization.

99131023111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26484593.

The product of its (nonzero) digits is 1458, while the sum is 31.

The spelling of 99131023111 in words is "ninety-nine billion, one hundred thirty-one million, twenty-three thousand, one hundred eleven".