13013333031 has 4 divisors (see below), whose sum is σ = 17351110712. Its totient is φ = 8675555352.

The previous prime is 13013333029. The next prime is 13013333041. The reversal of 13013333031 is 13033331031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13013333031 - 2¹ = 13013333029 is a prime.

It is a super-2 number, since 2×13013333031² (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 = 13013332989 and 13013333007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013333041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2168888836 + ... + 2168888841.

It is an arithmetic number, because the mean of its divisors is an integer number (4337777678).

Almost surely, 2^13013333031 is an apocalyptic number.

13013333031 is a deficient number, since it is larger than the sum of its proper divisors (4337777681).

13013333031 is an equidigital number, since it uses as much as digits as its factorization.

13013333031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337777680.

The product of its (nonzero) digits is 729, while the sum is 21.

Adding to 13013333031 its reverse (13033331031), we get a palindrome (26046664062).

The spelling of 13013333031 in words is "thirteen billion, thirteen million, three hundred thirty-three thousand, thirty-one".