133431242312 has 16 divisors (see below), whose sum is σ = 253707292800. Its totient is φ = 65775964240.

The previous prime is 133431242299. The next prime is 133431242333. The reversal of 133431242312 is 213242134331.

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, 117456512 + ... + 117457647.

It is an arithmetic number, because the mean of its divisors is an integer number (15856705800).

Almost surely, 2^133431242312 is an apocalyptic number.

It is an amenable number.

133431242312 is a deficient number, since it is larger than the sum of its proper divisors (120276050488).

133431242312 is a wasteful number, since it uses less digits than its factorization.

133431242312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234914236 (or 234914232 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

Adding to 133431242312 its reverse (213242134331), we get a palindrome (346673376643).

The spelling of 133431242312 in words is "one hundred thirty-three billion, four hundred thirty-one million, two hundred forty-two thousand, three hundred twelve".