101013123251 has 2 divisors, whose sum is σ = 101013123252. Its totient is φ = 101013123250.

The previous prime is 101013123193. The next prime is 101013123307. The reversal of 101013123251 is 152321310101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101013123251 - 2⁶ = 101013123187 is a prime.

It is not a weakly prime, because it can be changed into another prime (101019123251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50506561625 + 50506561626.

It is an arithmetic number, because the mean of its divisors is an integer number (50506561626).

Almost surely, 2^101013123251 is an apocalyptic number.

101013123251 is a deficient number, since it is larger than the sum of its proper divisors (1).

101013123251 is an equidigital number, since it uses as much as digits as its factorization.

101013123251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 101013123251 its reverse (152321310101), we get a palindrome (253334433352).

The spelling of 101013123251 in words is "one hundred one billion, thirteen million, one hundred twenty-three thousand, two hundred fifty-one".