13313321031 has 16 divisors (see below), whose sum is σ = 18471784320. Its totient is φ = 8522199840.

The previous prime is 13313321009. The next prime is 13313321051. The reversal of 13313321031 is 13012331331.

It is not a de Polignac number, because 13313321031 - 2⁶ = 13313320967 is a prime.

It is a super-2 number, since 2×13313321031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13313320989 and 13313321007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313321051) 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, 867000 + ... + 882221.

It is an arithmetic number, because the mean of its divisors is an integer number (1154486520).

Almost surely, 2^13313321031 is an apocalyptic number.

13313321031 is a deficient number, since it is larger than the sum of its proper divisors (5158463289).

13313321031 is a wasteful number, since it uses less digits than its factorization.

13313321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749326.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13313321031 its reverse (13012331331), we get a palindrome (26325652362).

The spelling of 13313321031 in words is "thirteen billion, three hundred thirteen million, three hundred twenty-one thousand, thirty-one".