320212553023 has 4 divisors (see below), whose sum is σ = 349322785128. Its totient is φ = 291102320920.

The previous prime is 320212553009. The next prime is 320212553041. The reversal of 320212553023 is 320355212023.

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 320212553023 - 2⁹ = 320212552511 is a prime.

It is a super-2 number, since 2×320212553023² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320212552982 and 320212553000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320212551023) 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, 14555116036 + ... + 14555116057.

It is an arithmetic number, because the mean of its divisors is an integer number (87330696282).

Almost surely, 2^320212553023 is an apocalyptic number.

320212553023 is a deficient number, since it is larger than the sum of its proper divisors (29110232105).

320212553023 is a wasteful number, since it uses less digits than its factorization.

320212553023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29110232104.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 320212553023 its reverse (320355212023), we get a palindrome (640567765046).

The spelling of 320212553023 in words is "three hundred twenty billion, two hundred twelve million, five hundred fifty-three thousand, twenty-three".