31424303421 has 12 divisors (see below), whose sum is σ = 51875040672. Its totient is φ = 17956744776.

The previous prime is 31424303413. The next prime is 31424303441. The reversal of 31424303421 is 12430342413.

31424303421 is a `hidden beast` number, since 314 + 2 + 4 + 3 + 0 + 342 + 1 = 666.

It is not a de Polignac number, because 31424303421 - 2³ = 31424303413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424303441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249399171 + ... + 249399296.

It is an arithmetic number, because the mean of its divisors is an integer number (4322920056).

Almost surely, 2^31424303421 is an apocalyptic number.

It is an amenable number.

31424303421 is a deficient number, since it is larger than the sum of its proper divisors (20450737251).

31424303421 is a wasteful number, since it uses less digits than its factorization.

31424303421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498798480 (or 498798477 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 31424303421 its reverse (12430342413), we get a palindrome (43854645834).

The spelling of 31424303421 in words is "thirty-one billion, four hundred twenty-four million, three hundred three thousand, four hundred twenty-one".