31234012 has 6 divisors (see below), whose sum is σ = 54659528. Its totient is φ = 15617004.

The previous prime is 31234009. The next prime is 31234061. The reversal of 31234012 is 21043213.

It is a happy number.

It is a super-2 number, since 2×31234012² = 1951127011232288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3904248 + ... + 3904255.

Almost surely, 2^31234012 is an apocalyptic number.

It is an amenable number.

31234012 is a deficient number, since it is larger than the sum of its proper divisors (23425516).

31234012 is a wasteful number, since it uses less digits than its factorization.

31234012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7808507 (or 7808505 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31234012 is about 5588.7397506057. The cubic root of 31234012 is about 314.9265369964.

Adding to 31234012 its reverse (21043213), we get a palindrome (52277225).

The spelling of 31234012 in words is "thirty-one million, two hundred thirty-four thousand, twelve".