1111013222031 has 64 divisors (see below), whose sum is σ = 1829697776640. Its totient is φ = 662705556480.

The previous prime is 1111013222021. The next prime is 1111013222047. The reversal of 1111013222031 is 1302223101111.

It is not a de Polignac number, because 1111013222031 - 2⁵ = 1111013221999 is a prime.

It is a super-2 number, since 2×1111013222031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111013221995 and 1111013222013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111013222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1397971 + ... + 2043611.

It is an arithmetic number, because the mean of its divisors is an integer number (28589027760).

Almost surely, 2^{1111013222031} is an apocalyptic number.

1111013222031 is a deficient number, since it is larger than the sum of its proper divisors (718684554609).

1111013222031 is a wasteful number, since it uses less digits than its factorization.

1111013222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645853 (or 645847 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1111013222031 its reverse (1302223101111), we get a palindrome (2413236323142).

The spelling of 1111013222031 in words is "one trillion, one hundred eleven billion, thirteen million, two hundred twenty-two thousand, thirty-one".