23102156461 has 2 divisors, whose sum is σ = 23102156462. Its totient is φ = 23102156460.

The previous prime is 23102156431. The next prime is 23102156573. The reversal of 23102156461 is 16465120132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13063118436 + 10039038025 = 114294^2 + 100195^2 .

It is a cyclic number.

It is not a de Polignac number, because 23102156461 - 2⁷ = 23102156333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23102156431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11551078230 + 11551078231.

It is an arithmetic number, because the mean of its divisors is an integer number (11551078231).

Almost surely, 2^23102156461 is an apocalyptic number.

It is an amenable number.

23102156461 is a deficient number, since it is larger than the sum of its proper divisors (1).

23102156461 is an equidigital number, since it uses as much as digits as its factorization.

23102156461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 23102156461 its reverse (16465120132), we get a palindrome (39567276593).

The spelling of 23102156461 in words is "twenty-three billion, one hundred two million, one hundred fifty-six thousand, four hundred sixty-one".