23145155145251 has 2 divisors, whose sum is σ = 23145155145252. Its totient is φ = 23145155145250.

The previous prime is 23145155145247. The next prime is 23145155145257. The reversal of 23145155145251 is 15254155154132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23145155145251 - 2² = 23145155145247 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (23145155145257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572577572625 + 11572577572626.

It is an arithmetic number, because the mean of its divisors is an integer number (11572577572626).

Almost surely, 2^{23145155145251} is an apocalyptic number.

23145155145251 is a deficient number, since it is larger than the sum of its proper divisors (1).

23145155145251 is an equidigital number, since it uses as much as digits as its factorization.

23145155145251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600000, while the sum is 44.

The spelling of 23145155145251 in words is "twenty-three trillion, one hundred forty-five billion, one hundred fifty-five million, one hundred forty-five thousand, two hundred fifty-one".