312323402 has 4 divisors (see below), whose sum is σ = 468485106. Its totient is φ = 156161700.

The previous prime is 312323393. The next prime is 312323423. The reversal of 312323402 is 204323213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 288694081 + 23629321 = 16991^2 + 4861^2 .

It is a super-3 number, since 3×312323402³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78080849 + ... + 78080852.

Almost surely, 2^312323402 is an apocalyptic number.

312323402 is a deficient number, since it is larger than the sum of its proper divisors (156161704).

312323402 is a wasteful number, since it uses less digits than its factorization.

312323402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156161703.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 312323402 is about 17672.6738780525. The cubic root of 312323402 is about 678.4765505358.

Adding to 312323402 its reverse (204323213), we get a palindrome (516646615).

The spelling of 312323402 in words is "three hundred twelve million, three hundred twenty-three thousand, four hundred two".