31313000221130 has 32 divisors (see below), whose sum is σ = 56389992912000. Its totient is φ = 12519291716800.

The previous prime is 31313000221121. The next prime is 31313000221133. The reversal of 31313000221130 is 3112200031313.

It is not an unprimeable number, because it can be changed into a prime (31313000221133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 255240305 + ... + 255362955.

It is an arithmetic number, because the mean of its divisors is an integer number (1762187278500).

Almost surely, 2^{31313000221130} is an apocalyptic number.

31313000221130 is a deficient number, since it is larger than the sum of its proper divisors (25076992690870).

31313000221130 is a wasteful number, since it uses less digits than its factorization.

31313000221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134494.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31313000221130 its reverse (3112200031313), we get a palindrome (34425200252443).

The spelling of 31313000221130 in words is "thirty-one trillion, three hundred thirteen billion, two hundred twenty-one thousand, one hundred thirty".