31214004451 has 12 divisors (see below), whose sum is σ = 36905420640. Its totient is φ = 26316254160.

The previous prime is 31214004443. The next prime is 31214004511. The reversal of 31214004451 is 15440041213.

It is not a de Polignac number, because 31214004451 - 2³ = 31214004443 is a prime.

It is a super-2 number, since 2×31214004451² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31214004401) 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, 5218491 + ... + 5224468.

It is an arithmetic number, because the mean of its divisors is an integer number (3075451720).

Almost surely, 2^31214004451 is an apocalyptic number.

31214004451 is a deficient number, since it is larger than the sum of its proper divisors (5691416189).

31214004451 is a wasteful number, since it uses less digits than its factorization.

31214004451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443034 (or 10443027 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 31214004451 its reverse (15440041213), we get a palindrome (46654045664).

The spelling of 31214004451 in words is "thirty-one billion, two hundred fourteen million, four thousand, four hundred fifty-one".