31024014421 has 4 divisors (see below), whose sum is σ = 31046710752. Its totient is φ = 31001318092.

The previous prime is 31024014419. The next prime is 31024014433. The reversal of 31024014421 is 12441042013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31024014421 - 2¹ = 31024014419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31024014392 and 31024014401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31024017421) 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, 11346115 + ... + 11348848.

It is an arithmetic number, because the mean of its divisors is an integer number (7761677688).

Almost surely, 2^31024014421 is an apocalyptic number.

It is an amenable number.

31024014421 is a deficient number, since it is larger than the sum of its proper divisors (22696331).

31024014421 is a wasteful number, since it uses less digits than its factorization.

31024014421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22696330.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 31024014421 its reverse (12441042013), we get a palindrome (43465056434).

The spelling of 31024014421 in words is "thirty-one billion, twenty-four million, fourteen thousand, four hundred twenty-one".