23211223249 has 2 divisors, whose sum is σ = 23211223250. Its totient is φ = 23211223248.

The previous prime is 23211223201. The next prime is 23211223253. The reversal of 23211223249 is 94232211232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19267383249 + 3943840000 = 138807^2 + 62800^2 .

It is a cyclic number.

It is not a de Polignac number, because 23211223249 - 2⁹ = 23211222737 is a prime.

It is a super-3 number, since 3×23211223249³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23211223249.

It is not a weakly prime, because it can be changed into another prime (23211233249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605611624 + 11605611625.

It is an arithmetic number, because the mean of its divisors is an integer number (11605611625).

Almost surely, 2^23211223249 is an apocalyptic number.

It is an amenable number.

23211223249 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211223249 is an equidigital number, since it uses as much as digits as its factorization.

23211223249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The spelling of 23211223249 in words is "twenty-three billion, two hundred eleven million, two hundred twenty-three thousand, two hundred forty-nine".