31012124 has 24 divisors (see below), whose sum is σ = 63760368. Its totient is φ = 13011840.

The previous prime is 31012117. The next prime is 31012127. The reversal of 31012124 is 42121013.

It is a junction number, because it is equal to n+sod(n) for n = 31012099 and 31012108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26537 + ... + 27680.

It is an arithmetic number, because the mean of its divisors is an integer number (2656682).

Almost surely, 2^31012124 is an apocalyptic number.

It is an amenable number.

31012124 is an abundant number, since it is smaller than the sum of its proper divisors (32748244).

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

31012124 is a wasteful number, since it uses less digits than its factorization.

31012124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54245 (or 54243 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 31012124 is about 5568.8530237384. The cubic root of 31012124 is about 314.1790126961.

Adding to 31012124 its reverse (42121013), we get a palindrome (73133137).

Subtracting 31012124 from its reverse (42121013), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 3101 and 2124, that added together give a palindrome (5225).

The spelling of 31012124 in words is "thirty-one million, twelve thousand, one hundred twenty-four".