31300053453252 has 72 divisors (see below), whose sum is σ = 80224759775160. Its totient is φ = 10287689195520.

The previous prime is 31300053453169. The next prime is 31300053453299. The reversal of 31300053453252 is 25235435000313.

31300053453252 is a `hidden beast` number, since 3 + 1 + 300 + 0 + 5 + 345 + 3 + 2 + 5 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11277346046976 + 20022707406276 = 3358176^2 + 4474674^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 8300524 + ... + 11467292.

It is an arithmetic number, because the mean of its divisors is an integer number (1114232774655).

Almost surely, 2^{31300053453252} 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 31300053453252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40112379887580).

31300053453252 is an abundant number, since it is smaller than the sum of its proper divisors (48924706321908).

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

31300053453252 is a wasteful number, since it uses less digits than its factorization.

31300053453252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170613 (or 3170608 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

Adding to 31300053453252 its reverse (25235435000313), we get a palindrome (56535488453565).

The spelling of 31300053453252 in words is "thirty-one trillion, three hundred billion, fifty-three million, four hundred fifty-three thousand, two hundred fifty-two".