312513111 has 12 divisors (see below), whose sum is σ = 462418320. Its totient is φ = 203260320.

The previous prime is 312513109. The next prime is 312513119. The reversal of 312513111 is 111315213.

It is not a de Polignac number, because 312513111 - 2¹ = 312513109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312513119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423091 + ... + 423828.

It is an arithmetic number, because the mean of its divisors is an integer number (38534860).

Almost surely, 2^312513111 is an apocalyptic number.

312513111 is a deficient number, since it is larger than the sum of its proper divisors (149905209).

312513111 is a wasteful number, since it uses less digits than its factorization.

312513111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846966 (or 846963 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 312513111 is about 17678.0403608545. The cubic root of 312513111 is about 678.6138943438.

Adding to 312513111 its reverse (111315213), we get a palindrome (423828324).

The spelling of 312513111 in words is "three hundred twelve million, five hundred thirteen thousand, one hundred eleven".