31013301120223 has 4 divisors (see below), whose sum is σ = 31013339368680. Its totient is φ = 31013262871768.

The previous prime is 31013301120143. The next prime is 31013301120239. The reversal of 31013301120223 is 32202110331013.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31013301120223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31013301120194 and 31013301120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013301120253) 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, 17881033 + ... + 19538626.

It is an arithmetic number, because the mean of its divisors is an integer number (7753334842170).

Almost surely, 2^{31013301120223} is an apocalyptic number.

31013301120223 is a deficient number, since it is larger than the sum of its proper divisors (38248457).

31013301120223 is an equidigital number, since it uses as much as digits as its factorization.

31013301120223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38248456.

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

Adding to 31013301120223 its reverse (32202110331013), we get a palindrome (63215411451236).

The spelling of 31013301120223 in words is "thirty-one trillion, thirteen billion, three hundred one million, one hundred twenty thousand, two hundred twenty-three".