31401413311333 has 12 divisors (see below), whose sum is σ = 34125467352708. Its totient is φ = 28881277626240.

The previous prime is 31401413311309. The next prime is 31401413311369. The reversal of 31401413311333 is 33311331410413.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 19996217154369 + 11405196156964 = 4471713^2 + 3377158^2 .

It is not a de Polignac number, because 31401413311333 - 2⁹ = 31401413310821 is a prime.

It is a super-2 number, since 2×31401413311333² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31401413311295 and 31401413311304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31401413311133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335345208 + ... + 335438833.

It is an arithmetic number, because the mean of its divisors is an integer number (2843788946059).

Almost surely, 2^{31401413311333} is an apocalyptic number.

It is an amenable number.

31401413311333 is a deficient number, since it is larger than the sum of its proper divisors (2724054041375).

31401413311333 is a wasteful number, since it uses less digits than its factorization.

31401413311333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670784344 (or 670784331 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

Adding to 31401413311333 its reverse (33311331410413), we get a palindrome (64712744721746).

The spelling of 31401413311333 in words is "thirty-one trillion, four hundred one billion, four hundred thirteen million, three hundred eleven thousand, three hundred thirty-three".