312011013 has 8 divisors (see below), whose sum is σ = 440486208. Its totient is φ = 195771584.

The previous prime is 312011009. The next prime is 312011017. The reversal of 312011013 is 310110213.

It is an interprime number because it is at equal distance from previous prime (312011009) and next prime (312011017).

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

It is a cyclic number.

It is not a de Polignac number, because 312011013 - 2² = 312011009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312011013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312011017) 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, 3058881 + ... + 3058982.

It is an arithmetic number, because the mean of its divisors is an integer number (55060776).

Almost surely, 2^312011013 is an apocalyptic number.

It is an amenable number.

312011013 is a deficient number, since it is larger than the sum of its proper divisors (128475195).

312011013 is a wasteful number, since it uses less digits than its factorization.

312011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117883.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 312011013 is about 17663.8334740792. The cubic root of 312011013 is about 678.2502687251.

Adding to 312011013 its reverse (310110213), we get a palindrome (622121226).

The spelling of 312011013 in words is "three hundred twelve million, eleven thousand, thirteen".