210320311023 has 16 divisors (see below), whose sum is σ = 315853945440. Its totient is φ = 138292805952.

The previous prime is 210320311021. The next prime is 210320311031. The reversal of 210320311023 is 320113023012.

210320311023 is a `hidden beast` number, since 2 + 10 + 320 + 311 + 0 + 23 = 666.

It is not a de Polignac number, because 210320311023 - 2¹ = 210320311021 is a prime.

It is a super-2 number, since 2×210320311023² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210320310987 and 210320311005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210320311021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53351736 + ... + 53355677.

It is an arithmetic number, because the mean of its divisors is an integer number (19740871590).

Almost surely, 2^210320311023 is an apocalyptic number.

210320311023 is a deficient number, since it is larger than the sum of its proper divisors (105533634417).

210320311023 is a wasteful number, since it uses less digits than its factorization.

210320311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106707495 (or 106707489 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 210320311023 its reverse (320113023012), we get a palindrome (530433334035).

The spelling of 210320311023 in words is "two hundred ten billion, three hundred twenty million, three hundred eleven thousand, twenty-three".