31311303132230 has 16 divisors (see below), whose sum is σ = 61484013423504. Its totient is φ = 11385928411680.

The previous prime is 31311303132173. The next prime is 31311303132283. The reversal of 31311303132230 is 3223130311313.

It is a self number, because there is not a number n which added to its sum of digits gives 31311303132230.

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, 142324105037 + ... + 142324105256.

It is an arithmetic number, because the mean of its divisors is an integer number (3842750838969).

Almost surely, 2^{31311303132230} is an apocalyptic number.

31311303132230 is a deficient number, since it is larger than the sum of its proper divisors (30172710291274).

31311303132230 is a wasteful number, since it uses less digits than its factorization.

31311303132230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284648210311.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31311303132230 its reverse (3223130311313), we get a palindrome (34534433443543).

The spelling of 31311303132230 in words is "thirty-one trillion, three hundred eleven billion, three hundred three million, one hundred thirty-two thousand, two hundred thirty".