111023113131 has 48 divisors (see below), whose sum is σ = 191409684480. Its totient is φ = 63416137680.

The previous prime is 111023113121. The next prime is 111023113133. The reversal of 111023113131 is 131311320111.

It is not a de Polignac number, because 111023113131 - 2⁶ = 111023113067 is a prime.

It is a super-2 number, since 2×111023113131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111023113133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3539286 + ... + 3570516.

It is an arithmetic number, because the mean of its divisors is an integer number (3987701760).

Almost surely, 2^111023113131 is an apocalyptic number.

111023113131 is a deficient number, since it is larger than the sum of its proper divisors (80386571349).

111023113131 is a wasteful number, since it uses less digits than its factorization.

111023113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33941 (or 33928 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111023113131 its reverse (131311320111), we get a palindrome (242334433242).

The spelling of 111023113131 in words is "one hundred eleven billion, twenty-three million, one hundred thirteen thousand, one hundred thirty-one".