23220142331 has 8 divisors (see below), whose sum is σ = 23626538400. Its totient is φ = 22814576640.

The previous prime is 23220142321. The next prime is 23220142339. The reversal of 23220142331 is 13324102232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23220142331 is a prime.

It is a super-2 number, since 2×23220142331² (a number of 22 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 = 23220142297 and 23220142306.

It is not an unprimeable number, because it can be changed into a prime (23220142339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151046 + ... + 263163.

It is an arithmetic number, because the mean of its divisors is an integer number (2953317300).

Almost surely, 2^23220142331 is an apocalyptic number.

23220142331 is a deficient number, since it is larger than the sum of its proper divisors (406396069).

23220142331 is an equidigital number, since it uses as much as digits as its factorization.

23220142331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415189.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23220142331 its reverse (13324102232), we get a palindrome (36544244563).

The spelling of 23220142331 in words is "twenty-three billion, two hundred twenty million, one hundred forty-two thousand, three hundred thirty-one".