1251425432423 has 4 divisors (see below), whose sum is σ = 1263120997320. Its totient is φ = 1239729867528.

The previous prime is 1251425432399. The next prime is 1251425432429. The reversal of 1251425432423 is 3242345241521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1251425432423 - 2¹⁸ = 1251425170279 is a prime.

It is a super-2 number, since 2×1251425432423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251425432429) 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, 5847782288 + ... + 5847782501.

It is an arithmetic number, because the mean of its divisors is an integer number (315780249330).

Almost surely, 2^{1251425432423} is an apocalyptic number.

1251425432423 is a deficient number, since it is larger than the sum of its proper divisors (11695564897).

1251425432423 is a wasteful number, since it uses less digits than its factorization.

1251425432423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11695564896.

The product of its digits is 230400, while the sum is 38.

The spelling of 1251425432423 in words is "one trillion, two hundred fifty-one billion, four hundred twenty-five million, four hundred thirty-two thousand, four hundred twenty-three".