23131133321 has 8 divisors (see below), whose sum is σ = 23879218944. Its totient is φ = 22383167760.

The previous prime is 23131133297. The next prime is 23131133339. The reversal of 23131133321 is 12333113132.

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

It is a cyclic number.

It is not a de Polignac number, because 23131133321 - 2⁶ = 23131133257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23131133341) 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, 524306 + ... + 566708.

It is an arithmetic number, because the mean of its divisors is an integer number (2984902368).

Almost surely, 2^23131133321 is an apocalyptic number.

It is an amenable number.

23131133321 is a deficient number, since it is larger than the sum of its proper divisors (748085623).

23131133321 is a wasteful number, since it uses less digits than its factorization.

23131133321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60031.

The product of its digits is 972, while the sum is 23.

Adding to 23131133321 its reverse (12333113132), we get a palindrome (35464246453).

The spelling of 23131133321 in words is "twenty-three billion, one hundred thirty-one million, one hundred thirty-three thousand, three hundred twenty-one".