23231002211 has 4 divisors (see below), whose sum is σ = 23549235192. Its totient is φ = 22912769232.

The previous prime is 23231002181. The next prime is 23231002243. The reversal of 23231002211 is 11220013232.

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 23231002211 - 2²² = 23226807907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23231002211.

It is not an unprimeable number, because it can be changed into a prime (23231002261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159116381 + ... + 159116526.

It is an arithmetic number, because the mean of its divisors is an integer number (5887308798).

Almost surely, 2^23231002211 is an apocalyptic number.

23231002211 is a deficient number, since it is larger than the sum of its proper divisors (318232981).

23231002211 is an equidigital number, since it uses as much as digits as its factorization.

23231002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318232980.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23231002211 its reverse (11220013232), we get a palindrome (34451015443).

The spelling of 23231002211 in words is "twenty-three billion, two hundred thirty-one million, two thousand, two hundred eleven".