31530201515052 has 24 divisors (see below), whose sum is σ = 73604897248176. Its totient is φ = 10505149022208.

The previous prime is 31530201515039. The next prime is 31530201515053. The reversal of 31530201515052 is 25051510203513.

It is a happy number.

31530201515052 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (31530201515053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614741973 + ... + 614793260.

It is an arithmetic number, because the mean of its divisors is an integer number (3066870718674).

Almost surely, 2^{31530201515052} is an apocalyptic number.

It is an amenable number.

31530201515052 is an abundant number, since it is smaller than the sum of its proper divisors (42074695733124).

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

31530201515052 is a wasteful number, since it uses less digits than its factorization.

31530201515052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229537377 (or 1229537375 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 31530201515052 its reverse (25051510203513), we get a palindrome (56581711718565).

The spelling of 31530201515052 in words is "thirty-one trillion, five hundred thirty billion, two hundred one million, five hundred fifteen thousand, fifty-two".