31130011424 has 48 divisors (see below), whose sum is σ = 61489272096. Its totient is φ = 15513792000.

The previous prime is 31130011421. The next prime is 31130011433. The reversal of 31130011424 is 42411003113.

It is a super-2 number, since 2×31130011424² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31130011396 and 31130011405.

It is not an unprimeable number, because it can be changed into a prime (31130011421) 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, 18673439 + ... + 18675105.

It is an arithmetic number, because the mean of its divisors is an integer number (1281026502).

Almost surely, 2^31130011424 is an apocalyptic number.

It is an amenable number.

31130011424 is a deficient number, since it is larger than the sum of its proper divisors (30359260672).

31130011424 is a wasteful number, since it uses less digits than its factorization.

31130011424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249 (or 3241 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31130011424 its reverse (42411003113), we get a palindrome (73541014537).

The spelling of 31130011424 in words is "thirty-one billion, one hundred thirty million, eleven thousand, four hundred twenty-four".