101111232120 has 64 divisors (see below), whose sum is σ = 303583381920. Its totient is φ = 26940801024.

The previous prime is 101111232113. The next prime is 101111232127. The reversal of 101111232120 is 21232111101.

It is an interprime number because it is at equal distance from previous prime (101111232113) and next prime (101111232127).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101111232120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111232127) 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, 200137 + ... + 492216.

Almost surely, 2^101111232120 is an apocalyptic number.

101111232120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111232120 is an abundant number, since it is smaller than the sum of its proper divisors (202472149800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101111232120 is a wasteful number, since it uses less digits than its factorization.

101111232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693584 (or 693580 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 101111232120 its reverse (21232111101), we get a palindrome (122343343221).

The spelling of 101111232120 in words is "one hundred one billion, one hundred eleven million, two hundred thirty-two thousand, one hundred twenty".