31112223233020 has 12 divisors (see below), whose sum is σ = 65335668789384. Its totient is φ = 12444889293200.

The previous prime is 31112223232967. The next prime is 31112223233059. The reversal of 31112223233020 is 2033232221113.

31112223233020 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×31112223233020² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777805580806 + ... + 777805580845.

It is an arithmetic number, because the mean of its divisors is an integer number (5444639065782).

Almost surely, 2^{31112223233020} is an apocalyptic number.

It is an amenable number.

31112223233020 is an abundant number, since it is smaller than the sum of its proper divisors (34223445556364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31112223233020 is a wasteful number, since it uses less digits than its factorization.

31112223233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555611161660 (or 1555611161658 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31112223233020 its reverse (2033232221113), we get a palindrome (33145455454133).

The spelling of 31112223233020 in words is "thirty-one trillion, one hundred twelve billion, two hundred twenty-three million, two hundred thirty-three thousand, twenty".