10123502257 has 4 divisors (see below), whose sum is σ = 11043820656. Its totient is φ = 9203183860.

The previous prime is 10123502251. The next prime is 10123502299. The reversal of 10123502257 is 75220532101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10123502257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10123502251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460159183 + ... + 460159204.

It is an arithmetic number, because the mean of its divisors is an integer number (2760955164).

Almost surely, 2^10123502257 is an apocalyptic number.

It is an amenable number.

10123502257 is a deficient number, since it is larger than the sum of its proper divisors (920318399).

10123502257 is an equidigital number, since it uses as much as digits as its factorization.

10123502257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920318398.

The product of its (nonzero) digits is 4200, while the sum is 28.

The spelling of 10123502257 in words is "ten billion, one hundred twenty-three million, five hundred two thousand, two hundred fifty-seven".