23031112232421 has 6 divisors (see below), whose sum is σ = 33267162113510. Its totient is φ = 15354074821608.

The previous prime is 23031112232399. The next prime is 23031112232431. The reversal of 23031112232421 is 12423221113032.

23031112232421 is a `hidden beast` number, since 2 + 3 + 0 + 3 + 1 + 1 + 1 + 2 + 232 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22436611092900 + 594501139521 = 4736730^2 + 771039^2 .

It is not a de Polignac number, because 23031112232421 - 2⁹ = 23031112231909 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 (23031112232431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1279506235126 + ... + 1279506235143.

Almost surely, 2^{23031112232421} is an apocalyptic number.

It is an amenable number.

23031112232421 is a deficient number, since it is larger than the sum of its proper divisors (10236049881089).

23031112232421 is a wasteful number, since it uses less digits than its factorization.

23031112232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559012470275 (or 2559012470272 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 23031112232421 its reverse (12423221113032), we get a palindrome (35454333345453).

The spelling of 23031112232421 in words is "twenty-three trillion, thirty-one billion, one hundred twelve million, two hundred thirty-two thousand, four hundred twenty-one".