31320310312030 has 16 divisors (see below), whose sum is σ = 57217999735440. Its totient is φ = 12341137197312.

The previous prime is 31320310312019. The next prime is 31320310312043. The reversal of 31320310312030 is 3021301302313.

It is a junction number, because it is equal to n+sod(n) for n = 31320310311992 and 31320310312010.

It is a congruent number.

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, 23373365235 + ... + 23373366574.

It is an arithmetic number, because the mean of its divisors is an integer number (3576124983465).

Almost surely, 2^{31320310312030} is an apocalyptic number.

31320310312030 is a deficient number, since it is larger than the sum of its proper divisors (25897689423410).

31320310312030 is a wasteful number, since it uses less digits than its factorization.

31320310312030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46746731883.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31320310312030 its reverse (3021301302313), we get a palindrome (34341611614343).

The spelling of 31320310312030 in words is "thirty-one trillion, three hundred twenty billion, three hundred ten million, three hundred twelve thousand, thirty".