13021431011 has 4 divisors (see below), whose sum is σ = 13324255032. Its totient is φ = 12718606992.

The previous prime is 13021431001. The next prime is 13021431023. The reversal of 13021431011 is 11013412031.

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

It is a cyclic number.

It is not a de Polignac number, because 13021431011 - 2¹⁰ = 13021429987 is a prime.

It is a super-3 number, since 3×13021431011³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021431001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151411946 + ... + 151412031.

It is an arithmetic number, because the mean of its divisors is an integer number (3331063758).

Almost surely, 2^13021431011 is an apocalyptic number.

13021431011 is a deficient number, since it is larger than the sum of its proper divisors (302824021).

13021431011 is an equidigital number, since it uses as much as digits as its factorization.

13021431011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302824020.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13021431011 its reverse (11013412031), we get a palindrome (24034843042).

The spelling of 13021431011 in words is "thirteen billion, twenty-one million, four hundred thirty-one thousand, eleven".