13012003331 has 4 divisors (see below), whose sum is σ = 13019111664. Its totient is φ = 13004895000.

The previous prime is 13012003309. The next prime is 13012003349. The reversal of 13012003331 is 13330021031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13330021031 = 499 ⋅26713469.

It is a cyclic number.

It is not a de Polignac number, because 13012003331 - 2¹⁸ = 13011741187 is a prime.

It is a super-2 number, since 2×13012003331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (13012093331) 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, 3551420 + ... + 3555081.

It is an arithmetic number, because the mean of its divisors is an integer number (3254777916).

Almost surely, 2^13012003331 is an apocalyptic number.

13012003331 is a deficient number, since it is larger than the sum of its proper divisors (7108333).

13012003331 is an equidigital number, since it uses as much as digits as its factorization.

13012003331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7108332.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 13012003331 its reverse (13330021031), we get a palindrome (26342024362).

The spelling of 13012003331 in words is "thirteen billion, twelve million, three thousand, three hundred thirty-one".