311142412 has 24 divisors (see below), whose sum is σ = 642360320. Its totient is φ = 129044880.

The previous prime is 311142409. The next prime is 311142431. The reversal of 311142412 is 214241113.

It is a self number, because there is not a number n which added to its sum of digits gives 311142412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178362 + ... + 180097.

Almost surely, 2^311142412 is an apocalyptic number.

It is an amenable number.

311142412 is an abundant number, since it is smaller than the sum of its proper divisors (331217908).

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

311142412 is a wasteful number, since it uses less digits than its factorization.

311142412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358501 (or 358499 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 311142412 is about 17639.2293482453. The cubic root of 311142412 is about 677.6202948117.

Adding to 311142412 its reverse (214241113), we get a palindrome (525383525).

The spelling of 311142412 in words is "three hundred eleven million, one hundred forty-two thousand, four hundred twelve".