101111020131 has 24 divisors (see below), whose sum is σ = 147718137024. Its totient is φ = 61010766240.

The previous prime is 101111020123. The next prime is 101111020151. The reversal of 101111020131 is 131020111101.

It is not a de Polignac number, because 101111020131 - 2³ = 101111020123 is a prime.

It is a super-2 number, since 2×101111020131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101111020121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1701340 + ... + 1759766.

It is an arithmetic number, because the mean of its divisors is an integer number (6154922376).

Almost surely, 2^101111020131 is an apocalyptic number.

101111020131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101111020131 is a deficient number, since it is larger than the sum of its proper divisors (46607116893).

101111020131 is an equidigital number, since it uses as much as digits as its factorization.

101111020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58899 (or 58670 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 101111020131 its reverse (131020111101), we get a palindrome (232131131232).

The spelling of 101111020131 in words is "one hundred one billion, one hundred eleven million, twenty thousand, one hundred thirty-one".