312013330 has 16 divisors (see below), whose sum is σ = 562131864. Its totient is φ = 124692480.

The previous prime is 312013313. The next prime is 312013337. The reversal of 312013330 is 33310213.

It can be written as a sum of positive squares in 4 ways, for example, as 233814681 + 78198649 = 15291^2 + 8843^2 .

It is not an unprimeable number, because it can be changed into a prime (312013337) 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, 2001 + ... + 25060.

Almost surely, 2^312013330 is an apocalyptic number.

312013330 is a deficient number, since it is larger than the sum of its proper divisors (250118534).

312013330 is a wasteful number, since it uses less digits than its factorization.

312013330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28221.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 312013330 is about 17663.8990599471. The cubic root of 312013330 is about 678.2519476209.

Adding to 312013330 its reverse (33310213), we get a palindrome (345323543).

The spelling of 312013330 in words is "three hundred twelve million, thirteen thousand, three hundred thirty".