31303210113320 has 16 divisors (see below), whose sum is σ = 70432222755060. Its totient is φ = 12521284045312.

The previous prime is 31303210113319. The next prime is 31303210113337. The reversal of 31303210113320 is 2331101230313.

It can be written as a sum of positive squares in 2 ways, for example, as 31302033211684 + 1176901636 = 5594822^2 + 34306^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 391290126377 + ... + 391290126456.

Almost surely, 2^{31303210113320} is an apocalyptic number.

It is an amenable number.

31303210113320 is an abundant number, since it is smaller than the sum of its proper divisors (39129012641740).

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

31303210113320 is a wasteful number, since it uses less digits than its factorization.

31303210113320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782580252844 (or 782580252840 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31303210113320 its reverse (2331101230313), we get a palindrome (33634311343633).

The spelling of 31303210113320 in words is "thirty-one trillion, three hundred three billion, two hundred ten million, one hundred thirteen thousand, three hundred twenty".