31112302021013 has 8 divisors (see below), whose sum is σ = 31117991982336. Its totient is φ = 31106612513200.

The previous prime is 31112302020971. The next prime is 31112302021027. The reversal of 31112302021013 is 31012020321113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31112302021013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112302021033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156290123 + ... + 156489063.

It is an arithmetic number, because the mean of its divisors is an integer number (3889748997792).

Almost surely, 2^{31112302021013} is an apocalyptic number.

It is an amenable number.

31112302021013 is a deficient number, since it is larger than the sum of its proper divisors (5689961323).

31112302021013 is a wasteful number, since it uses less digits than its factorization.

31112302021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226755.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31112302021013 its reverse (31012020321113), we get a palindrome (62124322342126).

The spelling of 31112302021013 in words is "thirty-one trillion, one hundred twelve billion, three hundred two million, twenty-one thousand, thirteen".