312402013 has 16 divisors (see below), whose sum is σ = 412401024. Its totient is φ = 229109760.

The previous prime is 312401953. The next prime is 312402017. The reversal of 312402013 is 310204213.

It is a happy number.

It is not a de Polignac number, because 312402013 - 2⁹ = 312401501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312402017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118020 + ... + 120637.

It is an arithmetic number, because the mean of its divisors is an integer number (25775064).

Almost surely, 2^312402013 is an apocalyptic number.

It is an amenable number.

312402013 is a deficient number, since it is larger than the sum of its proper divisors (99999011).

312402013 is a wasteful number, since it uses less digits than its factorization.

312402013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238692.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 312402013 is about 17674.8978214868. The cubic root of 312402013 is about 678.5334693637.

Adding to 312402013 its reverse (310204213), we get a palindrome (622606226).

The spelling of 312402013 in words is "three hundred twelve million, four hundred two thousand, thirteen".