125430005431 has 8 divisors (see below), whose sum is σ = 131209886304. Its totient is φ = 119677324800.

The previous prime is 125430005423. The next prime is 125430005443. The reversal of 125430005431 is 134500034521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125430005431 - 2³ = 125430005423 is a prime.

It is a super-2 number, since 2×125430005431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125430005431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125430005401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6790626 + ... + 6809071.

It is an arithmetic number, because the mean of its divisors is an integer number (16401235788).

Almost surely, 2^125430005431 is an apocalyptic number.

125430005431 is a deficient number, since it is larger than the sum of its proper divisors (5779880873).

125430005431 is a wasteful number, since it uses less digits than its factorization.

125430005431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13600121.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 125430005431 its reverse (134500034521), we get a palindrome (259930039952).

The spelling of 125430005431 in words is "one hundred twenty-five billion, four hundred thirty million, five thousand, four hundred thirty-one".