312303131 has 8 divisors (see below), whose sum is σ = 372436224. Its totient is φ = 256049640.

The previous prime is 312303113. The next prime is 312303137. The reversal of 312303131 is 131303213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312303131 - 2¹⁸ = 312040987 is a prime.

It is a super-2 number, since 2×312303131² = 195066491264806322, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (312303137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969725 + ... + 970046.

It is an arithmetic number, because the mean of its divisors is an integer number (46554528).

Almost surely, 2^312303131 is an apocalyptic number.

312303131 is a deficient number, since it is larger than the sum of its proper divisors (60133093).

312303131 is a wasteful number, since it uses less digits than its factorization.

312303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939801.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 312303131 is about 17672.1003562112. The cubic root of 312303131 is about 678.4618716318.

Adding to 312303131 its reverse (131303213), we get a palindrome (443606344).

The spelling of 312303131 in words is "three hundred twelve million, three hundred three thousand, one hundred thirty-one".