311315432061 has 16 divisors (see below), whose sum is σ = 416536174080. Its totient is φ = 206819523120.

The previous prime is 311315432047. The next prime is 311315432063. The reversal of 311315432061 is 160234513113.

311315432061 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 311315432061 - 2¹³ = 311315423869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311315432063) 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, 3504330 + ... + 3592068.

It is an arithmetic number, because the mean of its divisors is an integer number (26033510880).

Almost surely, 2^311315432061 is an apocalyptic number.

It is an amenable number.

311315432061 is a deficient number, since it is larger than the sum of its proper divisors (105220742019).

311315432061 is a wasteful number, since it uses less digits than its factorization.

311315432061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91856.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 311315432061 its reverse (160234513113), we get a palindrome (471549945174).

The spelling of 311315432061 in words is "three hundred eleven billion, three hundred fifteen million, four hundred thirty-two thousand, sixty-one".