13113261331 has 16 divisors (see below), whose sum is σ = 14410506240. Its totient is φ = 11877243840.

The previous prime is 13113261311. The next prime is 13113261347. The reversal of 13113261331 is 13316231131.

It is a cyclic number.

It is not a de Polignac number, because 13113261331 - 2¹¹ = 13113259283 is a prime.

It is a super-2 number, since 2×13113261331² (a number of 21 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 = 13113261296 and 13113261305.

It is not an unprimeable number, because it can be changed into a prime (13113261311) 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, 1095726 + ... + 1107628.

It is an arithmetic number, because the mean of its divisors is an integer number (900656640).

Almost surely, 2^13113261331 is an apocalyptic number.

13113261331 is a deficient number, since it is larger than the sum of its proper divisors (1297244909).

13113261331 is a wasteful number, since it uses less digits than its factorization.

13113261331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14466.

The product of its digits is 972, while the sum is 25.

Adding to 13113261331 its reverse (13316231131), we get a palindrome (26429492462).

The spelling of 13113261331 in words is "thirteen billion, one hundred thirteen million, two hundred sixty-one thousand, three hundred thirty-one".