31030033100000 has 144 divisors (see below), whose sum is σ = 83299731882192. Its totient is φ = 11283648000000.

The previous prime is 31030033099981. The next prime is 31030033100009. The reversal of 31030033100000 is 133003013.

It is a super-2 number, since 2×31030033100000² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030033100009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13004561 + ... + 15204560.

It is an arithmetic number, because the mean of its divisors is an integer number (578470360293).

Almost surely, 2^{31030033100000} is an apocalyptic number.

It is an amenable number.

31030033100000 is an abundant number, since it is smaller than the sum of its proper divisors (52269698782192).

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

31030033100000 is an equidigital number, since it uses as much as digits as its factorization.

31030033100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28209167 (or 28209139 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 31030033100000 its reverse (133003013), we get a palindrome (31030166103013).

The spelling of 31030033100000 in words is "thirty-one trillion, thirty billion, thirty-three million, one hundred thousand".