1252435402423 has 2 divisors, whose sum is σ = 1252435402424. Its totient is φ = 1252435402422.

The previous prime is 1252435402411. The next prime is 1252435402453. The reversal of 1252435402423 is 3242045342521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252435402423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252435402453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626217701211 + 626217701212.

It is an arithmetic number, because the mean of its divisors is an integer number (626217701212).

Almost surely, 2^{1252435402423} is an apocalyptic number.

1252435402423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252435402423 is an equidigital number, since it uses as much as digits as its factorization.

1252435402423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 37.

The spelling of 1252435402423 in words is "one trillion, two hundred fifty-two billion, four hundred thirty-five million, four hundred two thousand, four hundred twenty-three".