31503341052 has 72 divisors (see below), whose sum is σ = 81741114000. Its totient is φ = 10224218880.

The previous prime is 31503340969. The next prime is 31503341071. The reversal of 31503341052 is 25014330513.

31503341052 is a `hidden beast` number, since 315 + 0 + 3 + 341 + 0 + 5 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 715138 + ... + 757910.

It is an arithmetic number, because the mean of its divisors is an integer number (1135293250).

Almost surely, 2^31503341052 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 31503341052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40870557000).

31503341052 is an abundant number, since it is smaller than the sum of its proper divisors (50237772948).

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

31503341052 is a wasteful number, since it uses less digits than its factorization.

31503341052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43323 (or 43318 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 31503341052 its reverse (25014330513), we get a palindrome (56517671565).

The spelling of 31503341052 in words is "thirty-one billion, five hundred three million, three hundred forty-one thousand, fifty-two".