31122101013023 has 4 divisors (see below), whose sum is σ = 31122172159680. Its totient is φ = 31122029866368.

The previous prime is 31122101013011. The next prime is 31122101013041. The reversal of 31122101013023 is 32031010122113.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31122101013023 - 2³⁸ = 30847223106079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31122101012986 and 31122101013004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122101018023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34913090 + ... + 35793407.

It is an arithmetic number, because the mean of its divisors is an integer number (7780543039920).

Almost surely, 2^{31122101013023} is an apocalyptic number.

31122101013023 is a deficient number, since it is larger than the sum of its proper divisors (71146657).

31122101013023 is an equidigital number, since it uses as much as digits as its factorization.

31122101013023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71146656.

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

Adding to 31122101013023 its reverse (32031010122113), we get a palindrome (63153111135136).

The spelling of 31122101013023 in words is "thirty-one trillion, one hundred twenty-two billion, one hundred one million, thirteen thousand, twenty-three".