311200142 has 24 divisors (see below), whose sum is σ = 514113096. Its totient is φ = 141174000.

The previous prime is 311200111. The next prime is 311200151. The reversal of 311200142 is 241002113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166292 + ... + 168152.

It is an arithmetic number, because the mean of its divisors is an integer number (21421379).

Almost surely, 2^311200142 is an apocalyptic number.

311200142 is a deficient number, since it is larger than the sum of its proper divisors (202912954).

311200142 is a wasteful number, since it uses less digits than its factorization.

311200142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576 (or 2565 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 311200142 is about 17640.8656817062. The cubic root of 311200142 is about 677.6622012389.

Adding to 311200142 its reverse (241002113), we get a palindrome (552202255).

The spelling of 311200142 in words is "three hundred eleven million, two hundred thousand, one hundred forty-two".