311401413 has 6 divisors (see below), whose sum is σ = 449802054. Its totient is φ = 207600936.

The previous prime is 311401373. The next prime is 311401451. The reversal of 311401413 is 314104113.

It can be written as a sum of positive squares in only one way, i.e., 253382724 + 58018689 = 15918^2 + 7617^2 .

It is not a de Polignac number, because 311401413 - 2¹⁴ = 311385029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311401613) 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, 17300070 + ... + 17300087.

It is an arithmetic number, because the mean of its divisors is an integer number (74967009).

Almost surely, 2^311401413 is an apocalyptic number.

It is an amenable number.

311401413 is a deficient number, since it is larger than the sum of its proper divisors (138400641).

311401413 is a wasteful number, since it uses less digits than its factorization.

311401413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34600163 (or 34600160 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 311401413 is about 17646.5694399790. The cubic root of 311401413 is about 677.8082641059.

Adding to 311401413 its reverse (314104113), we get a palindrome (625505526).

The spelling of 311401413 in words is "three hundred eleven million, four hundred one thousand, four hundred thirteen".