131233012 has 6 divisors (see below), whose sum is σ = 229657778. Its totient is φ = 65616504.

The previous prime is 131232931. The next prime is 131233027. The reversal of 131233012 is 210332131.

It can be written as a sum of positive squares in only one way, i.e., 75968656 + 55264356 = 8716^2 + 7434^2 .

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, 16404123 + ... + 16404130.

Almost surely, 2^131233012 is an apocalyptic number.

It is an amenable number.

131233012 is a deficient number, since it is larger than the sum of its proper divisors (98424766).

131233012 is a wasteful number, since it uses less digits than its factorization.

131233012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32808257 (or 32808255 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131233012 is about 11455.6977962933. The cubic root of 131233012 is about 508.1762516946.

Adding to 131233012 its reverse (210332131), we get a palindrome (341565143).

The spelling of 131233012 in words is "one hundred thirty-one million, two hundred thirty-three thousand, twelve".