23201031211 has 16 divisors (see below), whose sum is σ = 24167597760. Its totient is φ = 22245874560.

The previous prime is 23201031193. The next prime is 23201031223. The reversal of 23201031211 is 11213010232.

It is a cyclic number.

It is not a de Polignac number, because 23201031211 - 2⁷ = 23201031083 is a prime.

It is a super-2 number, since 2×23201031211² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23201031011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5481466 + ... + 5485696.

It is an arithmetic number, because the mean of its divisors is an integer number (1510474860).

Almost surely, 2^23201031211 is an apocalyptic number.

23201031211 is a deficient number, since it is larger than the sum of its proper divisors (966566549).

23201031211 is a wasteful number, since it uses less digits than its factorization.

23201031211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23201031211 its reverse (11213010232), we get a palindrome (34414041443).

The spelling of 23201031211 in words is "twenty-three billion, two hundred one million, thirty-one thousand, two hundred eleven".