111020131111331 has 16 divisors (see below), whose sum is σ = 122591822648064. Its totient is φ = 99891324447264.

The previous prime is 111020131111303. The next prime is 111020131111333. The reversal of 111020131111331 is 133111131020111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111020131111331 is a prime.

It is a super-2 number, since 2×111020131111331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111020131111333) 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, 203634221 + ... + 204178686.

It is an arithmetic number, because the mean of its divisors is an integer number (7661988915504).

Almost surely, 2^{111020131111331} is an apocalyptic number.

111020131111331 is a deficient number, since it is larger than the sum of its proper divisors (11571691536733).

111020131111331 is a wasteful number, since it uses less digits than its factorization.

111020131111331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407813450.

The product of its (nonzero) digits is 54, while the sum is 20.

Adding to 111020131111331 its reverse (133111131020111), we get a palindrome (244131262131442).

The spelling of 111020131111331 in words is "one hundred eleven trillion, twenty billion, one hundred thirty-one million, one hundred eleven thousand, three hundred thirty-one".