311241401 has 4 divisors (see below), whose sum is σ = 311276772. Its totient is φ = 311206032.

The previous prime is 311241391. The next prime is 311241421. The reversal of 311241401 is 104142113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 104142113 = 31 ⋅3359423.

It can be written as a sum of positive squares in 2 ways, for example, as 270931600 + 40309801 = 16460^2 + 6349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311241401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311241401.

It is not an unprimeable number, because it can be changed into a prime (311241421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6995 + ... + 25911.

It is an arithmetic number, because the mean of its divisors is an integer number (77819193).

Almost surely, 2^311241401 is an apocalyptic number.

It is an amenable number.

311241401 is a deficient number, since it is larger than the sum of its proper divisors (35371).

311241401 is a wasteful number, since it uses less digits than its factorization.

311241401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35370.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 311241401 is about 17642.0350583486. The cubic root of 311241401 is about 677.6921481288.

Adding to 311241401 its reverse (104142113), we get a palindrome (415383514).

The spelling of 311241401 in words is "three hundred eleven million, two hundred forty-one thousand, four hundred one".