31124013224 has 16 divisors (see below), whose sum is σ = 58460094900. Its totient is φ = 15534654592.

The previous prime is 31124013199. The next prime is 31124013227. The reversal of 31124013224 is 42231042113.

It can be written as a sum of positive squares in 2 ways, for example, as 27882988324 + 3241024900 = 166982^2 + 56930^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31124013224.

It is not an unprimeable number, because it can be changed into a prime (31124013227) 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, 3414167 + ... + 3423270.

Almost surely, 2^31124013224 is an apocalyptic number.

It is an amenable number.

31124013224 is a deficient number, since it is larger than the sum of its proper divisors (27336081676).

31124013224 is a wasteful number, since it uses less digits than its factorization.

31124013224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6838012 (or 6838008 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31124013224 its reverse (42231042113), we get a palindrome (73355055337).

The spelling of 31124013224 in words is "thirty-one billion, one hundred twenty-four million, thirteen thousand, two hundred twenty-four".