23122101257 has 2 divisors, whose sum is σ = 23122101258. Its totient is φ = 23122101256.

The previous prime is 23122101229. The next prime is 23122101271. The reversal of 23122101257 is 75210122132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13986373696 + 9135727561 = 118264^2 + 95581^2 .

It is a cyclic number.

It is not a de Polignac number, because 23122101257 - 2¹⁶ = 23122035721 is a prime.

It is not a weakly prime, because it can be changed into another prime (23122131257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561050628 + 11561050629.

It is an arithmetic number, because the mean of its divisors is an integer number (11561050629).

Almost surely, 2^23122101257 is an apocalyptic number.

It is an amenable number.

23122101257 is a deficient number, since it is larger than the sum of its proper divisors (1).

23122101257 is an equidigital number, since it uses as much as digits as its factorization.

23122101257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 23122101257 its reverse (75210122132), we get a palindrome (98332223389).

The spelling of 23122101257 in words is "twenty-three billion, one hundred twenty-two million, one hundred one thousand, two hundred fifty-seven".