23220231277 has 2 divisors, whose sum is σ = 23220231278. Its totient is φ = 23220231276.

The previous prime is 23220231217. The next prime is 23220231311. The reversal of 23220231277 is 77213202232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18556160841 + 4664070436 = 136221^2 + 68294^2 .

It is a cyclic number.

It is not a de Polignac number, because 23220231277 - 2⁷ = 23220231149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23220231217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610115638 + 11610115639.

It is an arithmetic number, because the mean of its divisors is an integer number (11610115639).

Almost surely, 2^23220231277 is an apocalyptic number.

It is an amenable number.

23220231277 is a deficient number, since it is larger than the sum of its proper divisors (1).

23220231277 is an equidigital number, since it uses as much as digits as its factorization.

23220231277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 31.

The spelling of 23220231277 in words is "twenty-three billion, two hundred twenty million, two hundred thirty-one thousand, two hundred seventy-seven".