31020301243312 has 20 divisors (see below), whose sum is σ = 61235830522080. Its totient is φ = 15217506269888.

The previous prime is 31020301243241. The next prime is 31020301243313. The reversal of 31020301243312 is 21334210302013.

It is not an unprimeable number, because it can be changed into a prime (31020301243313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18290271112 + ... + 18290272807.

It is an arithmetic number, because the mean of its divisors is an integer number (3061791526104).

Almost surely, 2^{31020301243312} is an apocalyptic number.

It is an amenable number.

31020301243312 is a deficient number, since it is larger than the sum of its proper divisors (30215529278768).

31020301243312 is a wasteful number, since it uses less digits than its factorization.

31020301243312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36580543980 (or 36580543974 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31020301243312 its reverse (21334210302013), we get a palindrome (52354511545325).

The spelling of 31020301243312 in words is "thirty-one trillion, twenty billion, three hundred one million, two hundred forty-three thousand, three hundred twelve".