31320333133130 has 16 divisors (see below), whose sum is σ = 56376918721224. Its totient is φ = 12528062346240.

The previous prime is 31320333133129. The next prime is 31320333133171. The reversal of 31320333133130 is 3133133302313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23383114400881 + 7937218732249 = 4835609^2 + 2817307^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31320333133093 and 31320333133102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6989327 + ... + 10558946.

Almost surely, 2^{31320333133130} is an apocalyptic number.

31320333133130 is a deficient number, since it is larger than the sum of its proper divisors (25056585588094).

31320333133130 is a wasteful number, since it uses less digits than its factorization.

31320333133130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17726761.

The product of its (nonzero) digits is 13122, while the sum is 29.

Adding to 31320333133130 its reverse (3133133302313), we get a palindrome (34453466435443).

The spelling of 31320333133130 in words is "thirty-one trillion, three hundred twenty billion, three hundred thirty-three million, one hundred thirty-three thousand, one hundred thirty".