531023151321104 has 80 divisors (see below), whose sum is σ = 1111520483063088. Its totient is φ = 244308969455616.

The previous prime is 531023151321073. The next prime is 531023151321149. The reversal of 531023151321104 is 401123151320135.

It can be written as a sum of positive squares in 8 ways, for example, as 100578835210000 + 430444316111104 = 10028900^2 + 20747152^2 .

It is a super-2 number, since 2×531023151321104² (a number of 30 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 5188914224 + ... + 5189016560.

Almost surely, 2^{531023151321104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531023151321104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555760241531544).

531023151321104 is an abundant number, since it is smaller than the sum of its proper divisors (580497331741984).

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

531023151321104 is a wasteful number, since it uses less digits than its factorization.

531023151321104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181372 (or 181366 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 531023151321104 in words is "five hundred thirty-one trillion, twenty-three billion, one hundred fifty-one million, three hundred twenty-one thousand, one hundred four".