31000124 has 36 divisors (see below), whose sum is σ = 57718080. Its totient is φ = 14551680.

The previous prime is 31000087. The next prime is 31000127. The reversal of 31000124 is 42100013.

It is a happy number.

It is a super-2 number, since 2×31000124² = 1922015376030752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000127) 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, 348272 + ... + 348360.

It is an arithmetic number, because the mean of its divisors is an integer number (1603280).

Almost surely, 2^31000124 is an apocalyptic number.

It is an amenable number.

31000124 is a deficient number, since it is larger than the sum of its proper divisors (26717956).

31000124 is a wasteful number, since it uses less digits than its factorization.

31000124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 31000124 is about 5567.7754983476. The cubic root of 31000124 is about 314.1384840893.

Adding to 31000124 its reverse (42100013), we get a palindrome (73100137).

The spelling of 31000124 in words is "thirty-one million, one hundred twenty-four", and thus it is an aban number.