312012302 has 12 divisors (see below), whose sum is σ = 544429800. Its totient is φ = 133719516.

The previous prime is 312012301. The next prime is 312012307. The reversal of 312012302 is 203210213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312012301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1591802 + ... + 1591997.

It is an arithmetic number, because the mean of its divisors is an integer number (45369150).

Almost surely, 2^312012302 is an apocalyptic number.

312012302 is a deficient number, since it is larger than the sum of its proper divisors (232417498).

312012302 is a wasteful number, since it uses less digits than its factorization.

312012302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183815 (or 3183808 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 312012302 is about 17663.8699610250. The cubic root of 312012302 is about 678.2512027342.

Adding to 312012302 its reverse (203210213), we get a palindrome (515222515).

The spelling of 312012302 in words is "three hundred twelve million, twelve thousand, three hundred two".