311512413 has 16 divisors (see below), whose sum is σ = 422965440. Its totient is φ = 203888256.

The previous prime is 311512387. The next prime is 311512423. The reversal of 311512413 is 314215113.

It is not a de Polignac number, because 311512413 - 2⁶ = 311512349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311512413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311512423) 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, 61273 + ... + 66161.

It is an arithmetic number, because the mean of its divisors is an integer number (26435340).

Almost surely, 2^311512413 is an apocalyptic number.

It is an amenable number.

311512413 is a deficient number, since it is larger than the sum of its proper divisors (111453027).

311512413 is a wasteful number, since it uses less digits than its factorization.

311512413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276.

The product of its digits is 360, while the sum is 21.

The square root of 311512413 is about 17649.7142469786. The cubic root of 311512413 is about 677.8887901585. Note that the first 3 decimals are identical.

Adding to 311512413 its reverse (314215113), we get a palindrome (625727526).

The spelling of 311512413 in words is "three hundred eleven million, five hundred twelve thousand, four hundred thirteen".