111020112220031 has 6 divisors (see below), whose sum is σ = 129145844827440. Its totient is φ = 95160096188556.

The previous prime is 111020112220021. The next prime is 111020112220097. The reversal of 111020112220031 is 130022211020111.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-111020112220031 is a prime.

It is a super-2 number, since 2×111020112220031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111020112219991 and 111020112220009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020112220021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1132858287911 + ... + 1132858288008.

It is an arithmetic number, because the mean of its divisors is an integer number (21524307471240).

Almost surely, 2^{111020112220031} is an apocalyptic number.

111020112220031 is a deficient number, since it is larger than the sum of its proper divisors (18125732607409).

111020112220031 is an equidigital number, since it uses as much as digits as its factorization.

111020112220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265716575933 (or 2265716575926 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111020112220031 its reverse (130022211020111), we get a palindrome (241042323240142).

The spelling of 111020112220031 in words is "one hundred eleven trillion, twenty billion, one hundred twelve million, two hundred twenty thousand, thirty-one".