23020322231231 has 4 divisors (see below), whose sum is σ = 24791116249032. Its totient is φ = 21249528213432.

The previous prime is 23020322231209. The next prime is 23020322231239. The reversal of 23020322231231 is 13213222302032.

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 23020322231231 - 2³⁰ = 23019248489407 is a prime.

It is a super-2 number, since 2×23020322231231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23020322231231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020322231239) 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, 885397008881 + ... + 885397008906.

It is an arithmetic number, because the mean of its divisors is an integer number (6197779062258).

Almost surely, 2^{23020322231231} is an apocalyptic number.

23020322231231 is a deficient number, since it is larger than the sum of its proper divisors (1770794017801).

23020322231231 is a wasteful number, since it uses less digits than its factorization.

23020322231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770794017800.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 23020322231231 its reverse (13213222302032), we get a palindrome (36233544533263).

The spelling of 23020322231231 in words is "twenty-three trillion, twenty billion, three hundred twenty-two million, two hundred thirty-one thousand, two hundred thirty-one".