312133042 has 16 divisors (see below), whose sum is σ = 504587160. Its totient is φ = 143955072.

The previous prime is 312133033. The next prime is 312133051. The reversal of 312133042 is 240331213.

It is an interprime number because it is at equal distance from previous prime (312133033) and next prime (312133051).

It can be written as a sum of positive squares in 4 ways, for example, as 139499721 + 172633321 = 11811^2 + 13139^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39798 + ... + 46990.

Almost surely, 2^312133042 is an apocalyptic number.

312133042 is a deficient number, since it is larger than the sum of its proper divisors (192454118).

312133042 is a wasteful number, since it uses less digits than its factorization.

312133042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8877.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 312133042 is about 17667.2873412983. The cubic root of 312133042 is about 678.3386795085.

Adding to 312133042 its reverse (240331213), we get a palindrome (552464255).

It can be divided in two parts, 3121 and 33042, that added together give a palindrome (36163).

The spelling of 312133042 in words is "three hundred twelve million, one hundred thirty-three thousand, forty-two".