23211120323977 has 2 divisors, whose sum is σ = 23211120323978. Its totient is φ = 23211120323976.

The previous prime is 23211120323947. The next prime is 23211120323999. The reversal of 23211120323977 is 77932302111232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13631779631376 + 9579340692601 = 3692124^2 + 3095051^2 .

It is a cyclic number.

It is not a de Polignac number, because 23211120323977 - 2¹⁵ = 23211120291209 is a prime.

It is a super-2 number, since 2×23211120323977² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23211120323927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605560161988 + 11605560161989.

It is an arithmetic number, because the mean of its divisors is an integer number (11605560161989).

Almost surely, 2^{23211120323977} is an apocalyptic number.

It is an amenable number.

23211120323977 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211120323977 is an equidigital number, since it uses as much as digits as its factorization.

23211120323977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 23211120323977 in words is "twenty-three trillion, two hundred eleven billion, one hundred twenty million, three hundred twenty-three thousand, nine hundred seventy-seven".