101015639453 has 2 divisors, whose sum is σ = 101015639454. Its totient is φ = 101015639452.

The previous prime is 101015639447. The next prime is 101015639489. The reversal of 101015639453 is 354936510101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98042881924 + 2972757529 = 313118^2 + 54523^2 .

It is a cyclic number.

It is not a de Polignac number, because 101015639453 - 2¹⁴ = 101015623069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101015039453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50507819726 + 50507819727.

It is an arithmetic number, because the mean of its divisors is an integer number (50507819727).

Almost surely, 2^101015639453 is an apocalyptic number.

It is an amenable number.

101015639453 is a deficient number, since it is larger than the sum of its proper divisors (1).

101015639453 is an equidigital number, since it uses as much as digits as its factorization.

101015639453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The spelling of 101015639453 in words is "one hundred one billion, fifteen million, six hundred thirty-nine thousand, four hundred fifty-three".