111020122012031 has 16 divisors (see below), whose sum is σ = 114310339285248. Its totient is φ = 107745175872000.

The previous prime is 111020122012001. The next prime is 111020122012057. The reversal of 111020122012031 is 130210221020111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111020122012031 - 2¹⁴ = 111020121995647 is a prime.

It is a super-2 number, since 2×111020122012031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020122012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340242221 + ... + 340568361.

It is an arithmetic number, because the mean of its divisors is an integer number (7144396205328).

Almost surely, 2^{111020122012031} is an apocalyptic number.

111020122012031 is a deficient number, since it is larger than the sum of its proper divisors (3290217273217).

111020122012031 is a wasteful number, since it uses less digits than its factorization.

111020122012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349522.

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

Adding to 111020122012031 its reverse (130210221020111), we get a palindrome (241230343032142).

The spelling of 111020122012031 in words is "one hundred eleven trillion, twenty billion, one hundred twenty-two million, twelve thousand, thirty-one".