31130110020302 has 16 divisors (see below), whose sum is σ = 46918457824752. Its totient is φ = 15490801085760.

The previous prime is 31130110020271. The next prime is 31130110020319. The reversal of 31130110020302 is 20302001103113.

It is a super-2 number, since 2×31130110020302² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 43899599 + ... + 44603082.

It is an arithmetic number, because the mean of its divisors is an integer number (2932403614047).

Almost surely, 2^{31130110020302} is an apocalyptic number.

31130110020302 is a deficient number, since it is larger than the sum of its proper divisors (15788347804450).

31130110020302 is a wasteful number, since it uses less digits than its factorization.

31130110020302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88503523.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31130110020302 its reverse (20302001103113), we get a palindrome (51432111123415).

The spelling of 31130110020302 in words is "thirty-one trillion, one hundred thirty billion, one hundred ten million, twenty thousand, three hundred two".