311032331401 has 16 divisors (see below), whose sum is σ = 348731504640. Its totient is φ = 275010587280.

The previous prime is 311032331353. The next prime is 311032331417. The reversal of 311032331401 is 104133230113.

It is not a de Polignac number, because 311032331401 - 2⁷ = 311032331273 is a prime.

It is a super-2 number, since 2×311032331401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311032337401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2612821 + ... + 2729266.

It is an arithmetic number, because the mean of its divisors is an integer number (21795719040).

Almost surely, 2^311032331401 is an apocalyptic number.

It is an amenable number.

311032331401 is a deficient number, since it is larger than the sum of its proper divisors (37699173239).

311032331401 is a wasteful number, since it uses less digits than its factorization.

311032331401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342244.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 311032331401 its reverse (104133230113), we get a palindrome (415165561514).

The spelling of 311032331401 in words is "three hundred eleven billion, thirty-two million, three hundred thirty-one thousand, four hundred one".