23211020122331 has 4 divisors (see below), whose sum is σ = 24576374247192. Its totient is φ = 21845665997472.

The previous prime is 23211020122249. The next prime is 23211020122357. The reversal of 23211020122331 is 13322102011232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23211020122331 is a prime.

It is a super-2 number, since 2×23211020122331² (a number of 28 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 = 23211020122297 and 23211020122306.

It is not an unprimeable number, because it can be changed into a prime (23211020122531) 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, 682677062405 + ... + 682677062438.

It is an arithmetic number, because the mean of its divisors is an integer number (6144093561798).

Almost surely, 2^{23211020122331} is an apocalyptic number.

23211020122331 is a deficient number, since it is larger than the sum of its proper divisors (1365354124861).

23211020122331 is a wasteful number, since it uses less digits than its factorization.

23211020122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365354124860.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23211020122331 its reverse (13322102011232), we get a palindrome (36533122133563).

The spelling of 23211020122331 in words is "twenty-three trillion, two hundred eleven billion, twenty million, one hundred twenty-two thousand, three hundred thirty-one".