31016124 has 18 divisors (see below), whose sum is σ = 78401960. Its totient is φ = 10338696.

The previous prime is 31016119. The next prime is 31016159. The reversal of 31016124 is 42161013.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31016097 and 31016106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 430744 + ... + 430815.

Almost surely, 2^31016124 is an apocalyptic number.

It is an amenable number.

31016124 is an abundant number, since it is smaller than the sum of its proper divisors (47385836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31016124 is a wasteful number, since it uses less digits than its factorization.

31016124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861569 (or 861564 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 31016124 is about 5569.2121525401. The cubic root of 31016124 is about 314.1925199084.

Adding to 31016124 its reverse (42161013), we get a palindrome (73177137).

The spelling of 31016124 in words is "thirty-one million, sixteen thousand, one hundred twenty-four".