31020022103113 has 4 divisors (see below), whose sum is σ = 31680022573440. Its totient is φ = 30360021632788.

The previous prime is 31020022103047. The next prime is 31020022103251. The reversal of 31020022103113 is 31130122002013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31020022103113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31020022703113) 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, 330000235093 + ... + 330000235186.

It is an arithmetic number, because the mean of its divisors is an integer number (7920005643360).

Almost surely, 2^{31020022103113} is an apocalyptic number.

It is an amenable number.

31020022103113 is a deficient number, since it is larger than the sum of its proper divisors (660000470327).

31020022103113 is an equidigital number, since it uses as much as digits as its factorization.

31020022103113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660000470326.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31020022103113 its reverse (31130122002013), we get a palindrome (62150144105126).

The spelling of 31020022103113 in words is "thirty-one trillion, twenty billion, twenty-two million, one hundred three thousand, one hundred thirteen".