31223011012023 has 4 divisors (see below), whose sum is σ = 41630681349368. Its totient is φ = 20815340674680.

The previous prime is 31223011012021. The next prime is 31223011012027. The reversal of 31223011012023 is 32021011032213.

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

It is not a de Polignac number, because 31223011012023 - 2¹ = 31223011012021 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 (31223011012021) 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, 5203835168668 + ... + 5203835168673.

It is an arithmetic number, because the mean of its divisors is an integer number (10407670337342).

Almost surely, 2^{31223011012023} is an apocalyptic number.

31223011012023 is a deficient number, since it is larger than the sum of its proper divisors (10407670337345).

31223011012023 is a wasteful number, since it uses less digits than its factorization.

31223011012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10407670337344.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31223011012023 its reverse (32021011032213), we get a palindrome (63244022044236).

The spelling of 31223011012023 in words is "thirty-one trillion, two hundred twenty-three billion, eleven million, twelve thousand, twenty-three".