100111232131 has 2 divisors, whose sum is σ = 100111232132. Its totient is φ = 100111232130.

The previous prime is 100111232099. The next prime is 100111232159. The reversal of 100111232131 is 131232111001.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (131232111001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100111232131 - 2⁵ = 100111232099 is a prime.

It is a super-2 number, since 2×100111232131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100111242131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055616065 + 50055616066.

It is an arithmetic number, because the mean of its divisors is an integer number (50055616066).

Almost surely, 2^100111232131 is an apocalyptic number.

100111232131 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111232131 is an equidigital number, since it uses as much as digits as its factorization.

100111232131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 100111232131 its reverse (131232111001), we get a palindrome (231343343132).

The spelling of 100111232131 in words is "one hundred billion, one hundred eleven million, two hundred thirty-two thousand, one hundred thirty-one".