23202042551 has 2 divisors, whose sum is σ = 23202042552. Its totient is φ = 23202042550.

The previous prime is 23202042529. The next prime is 23202042559. The reversal of 23202042551 is 15524020232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23202042551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23202042551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23202042559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601021275 + 11601021276.

It is an arithmetic number, because the mean of its divisors is an integer number (11601021276).

Almost surely, 2^23202042551 is an apocalyptic number.

23202042551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23202042551 is an equidigital number, since it uses as much as digits as its factorization.

23202042551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 23202042551 its reverse (15524020232), we get a palindrome (38726062783).

The spelling of 23202042551 in words is "twenty-three billion, two hundred two million, forty-two thousand, five hundred fifty-one".