31304125421431 has 4 divisors (see below), whose sum is σ = 32383578022200. Its totient is φ = 30224672820664.

The previous prime is 31304125421417. The next prime is 31304125421449. The reversal of 31304125421431 is 13412452140313.

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 31304125421431 - 2¹⁵ = 31304125388663 is a prime.

It is a super-2 number, since 2×31304125421431² (a number of 28 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 (31304125461431) 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, 539726300341 + ... + 539726300398.

It is an arithmetic number, because the mean of its divisors is an integer number (8095894505550).

Almost surely, 2^{31304125421431} is an apocalyptic number.

31304125421431 is a deficient number, since it is larger than the sum of its proper divisors (1079452600769).

31304125421431 is a wasteful number, since it uses less digits than its factorization.

31304125421431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079452600768.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 31304125421431 its reverse (13412452140313), we get a palindrome (44716577561744).

The spelling of 31304125421431 in words is "thirty-one trillion, three hundred four billion, one hundred twenty-five million, four hundred twenty-one thousand, four hundred thirty-one".