315032523100 has 72 divisors (see below), whose sum is σ = 689565614976. Its totient is φ = 124920600000.

The previous prime is 315032523077. The next prime is 315032523107. The reversal of 315032523100 is 1325230513.

It is a super-2 number, since 2×315032523100² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315032523107) 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 23 ways as a sum of consecutive naturals, for example, 7392855 + ... + 7435345.

It is an arithmetic number, because the mean of its divisors is an integer number (9577300208).

Almost surely, 2^315032523100 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 315032523100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344782807488).

315032523100 is an abundant number, since it is smaller than the sum of its proper divisors (374533091876).

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

315032523100 is a wasteful number, since it uses less digits than its factorization.

315032523100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43147 (or 43140 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 315032523100 its reverse (1325230513), we get a palindrome (316357753613).

The spelling of 315032523100 in words is "three hundred fifteen billion, thirty-two million, five hundred twenty-three thousand, one hundred".