42403502431 has 8 divisors (see below), whose sum is σ = 43869564720. Its totient is φ = 40937698368.

The previous prime is 42403502423. The next prime is 42403502467. The reversal of 42403502431 is 13420530424.

It is a happy number.

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 42403502431 - 2³ = 42403502423 is a prime.

It is a super-2 number, since 2×42403502431² (a number of 22 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 42403502431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42403502831) 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, 305595 + ... + 422131.

It is an arithmetic number, because the mean of its divisors is an integer number (5483695590).

Almost surely, 2^42403502431 is an apocalyptic number.

42403502431 is a deficient number, since it is larger than the sum of its proper divisors (1466062289).

42403502431 is a wasteful number, since it uses less digits than its factorization.

42403502431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129113.

The product of its (nonzero) digits is 11520, while the sum is 28.

The spelling of 42403502431 in words is "forty-two billion, four hundred three million, five hundred two thousand, four hundred thirty-one".