311040311401 has 4 divisors (see below), whose sum is σ = 311042812500. Its totient is φ = 311037810304.

The previous prime is 311040311381. The next prime is 311040311429. The reversal of 311040311401 is 104113040113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154841463001 + 156198848400 = 393499^2 + 395220^2 .

It is a cyclic number.

It is not a de Polignac number, because 311040311401 - 2¹³ = 311040303209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311040311801) 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, 1053676 + ... + 1316173.

It is an arithmetic number, because the mean of its divisors is an integer number (77760703125).

Almost surely, 2^311040311401 is an apocalyptic number.

It is an amenable number.

311040311401 is a deficient number, since it is larger than the sum of its proper divisors (2501099).

311040311401 is a wasteful number, since it uses less digits than its factorization.

311040311401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501098.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 311040311401 its reverse (104113040113), we get a palindrome (415153351514).

The spelling of 311040311401 in words is "three hundred eleven billion, forty million, three hundred eleven thousand, four hundred one".