31201331021230 has 16 divisors (see below), whose sum is σ = 57680298429120. Its totient is φ = 12143220721632.

The previous prime is 31201331021227. The next prime is 31201331021243. The reversal of 31201331021230 is 3212013310213.

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, 42163960470 + ... + 42163961209.

It is an arithmetic number, because the mean of its divisors is an integer number (3605018651820).

Almost surely, 2^{31201331021230} is an apocalyptic number.

31201331021230 is a deficient number, since it is larger than the sum of its proper divisors (26478967407890).

31201331021230 is a wasteful number, since it uses less digits than its factorization.

31201331021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84327921723.

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

Adding to 31201331021230 its reverse (3212013310213), we get a palindrome (34413344331443).

The spelling of 31201331021230 in words is "thirty-one trillion, two hundred one billion, three hundred thirty-one million, twenty-one thousand, two hundred thirty".