31242124 has 12 divisors (see below), whose sum is σ = 57889944. Its totient is φ = 14702144.

The previous prime is 31242109. The next prime is 31242139. The reversal of 31242124 is 42124213.

It is an interprime number because it is at equal distance from previous prime (31242109) and next prime (31242139).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229654 + ... + 229789.

It is an arithmetic number, because the mean of its divisors is an integer number (4824162).

Almost surely, 2^31242124 is an apocalyptic number.

31242124 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31242124 is a deficient number, since it is larger than the sum of its proper divisors (26647820).

31242124 is a wasteful number, since it uses less digits than its factorization.

31242124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459464 (or 459462 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 31242124 is about 5589.4654485022. The cubic root of 31242124 is about 314.9537985485.

Adding to 31242124 its reverse (42124213), we get a palindrome (73366337).

It can be divided in two parts, 312421 and 24, that added together give a triangular number (312445 = T₇₉₀).

The spelling of 31242124 in words is "thirty-one million, two hundred forty-two thousand, one hundred twenty-four".