23101212331 has 4 divisors (see below), whose sum is σ = 24460107192. Its totient is φ = 21742317472.

The previous prime is 23101212319. The next prime is 23101212347. The reversal of 23101212331 is 13321210132.

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 23101212331 - 2³¹ = 20953728683 is a prime.

It is a super-2 number, since 2×23101212331² (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 = 23101212299 and 23101212308.

It is not an unprimeable number, because it can be changed into a prime (23101212361) 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, 679447405 + ... + 679447438.

It is an arithmetic number, because the mean of its divisors is an integer number (6115026798).

Almost surely, 2^23101212331 is an apocalyptic number.

23101212331 is a deficient number, since it is larger than the sum of its proper divisors (1358894861).

23101212331 is a wasteful number, since it uses less digits than its factorization.

23101212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358894860.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23101212331 its reverse (13321210132), we get a palindrome (36422422463).

The spelling of 23101212331 in words is "twenty-three billion, one hundred one million, two hundred twelve thousand, three hundred thirty-one".