311230132 has 6 divisors (see below), whose sum is σ = 544652738. Its totient is φ = 155615064.

The previous prime is 311230121. The next prime is 311230147. The reversal of 311230132 is 231032113.

311230132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 240064036 + 71166096 = 15494^2 + 8436^2 .

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, 38903763 + ... + 38903770.

Almost surely, 2^311230132 is an apocalyptic number.

It is an amenable number.

311230132 is a deficient number, since it is larger than the sum of its proper divisors (233422606).

311230132 is a wasteful number, since it uses less digits than its factorization.

311230132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77807537 (or 77807535 counting only the distinct ones).

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

The square root of 311230132 is about 17641.7156762034. The cubic root of 311230132 is about 677.6839690488.

Adding to 311230132 its reverse (231032113), we get a palindrome (542262245).

The spelling of 311230132 in words is "three hundred eleven million, two hundred thirty thousand, one hundred thirty-two".