23311404321 has 8 divisors (see below), whose sum is σ = 31090353984. Its totient is φ = 15536695440.

The previous prime is 23311404313. The next prime is 23311404367. The reversal of 23311404321 is 12340411332.

It is a happy number.

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

It is not a de Polignac number, because 23311404321 - 2³ = 23311404313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23311404291 and 23311404300.

It is not an unprimeable number, because it can be changed into a prime (23311404821) 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, 1047346 + ... + 1069371.

It is an arithmetic number, because the mean of its divisors is an integer number (3886294248).

Almost surely, 2^23311404321 is an apocalyptic number.

It is an amenable number.

23311404321 is a deficient number, since it is larger than the sum of its proper divisors (7778949663).

23311404321 is a wasteful number, since it uses less digits than its factorization.

23311404321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120391.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23311404321 its reverse (12340411332), we get a palindrome (35651815653).

The spelling of 23311404321 in words is "twenty-three billion, three hundred eleven million, four hundred four thousand, three hundred twenty-one".