31213031201230 has 16 divisors (see below), whose sum is σ = 56316908559744. Its totient is φ = 12455556392160.

The previous prime is 31213031201203. The next prime is 31213031201239. The reversal of 31213031201230 is 3210213031213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213031201239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3707006622 + ... + 3707015041.

It is an arithmetic number, because the mean of its divisors is an integer number (3519806784984).

Almost surely, 2^{31213031201230} is an apocalyptic number.

31213031201230 is a deficient number, since it is larger than the sum of its proper divisors (25103877358514).

31213031201230 is a wasteful number, since it uses less digits than its factorization.

31213031201230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7414022091.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31213031201230 its reverse (3210213031213), we get a palindrome (34423244232443).

The spelling of 31213031201230 in words is "thirty-one trillion, two hundred thirteen billion, thirty-one million, two hundred one thousand, two hundred thirty".