13003421431 has 32 divisors (see below), whose sum is σ = 18486171648. Its totient is φ = 8802915840.

The previous prime is 13003421413. The next prime is 13003421437. The reversal of 13003421431 is 13412430031.

It is a cyclic number.

It is not a de Polignac number, because 13003421431 - 2⁵ = 13003421399 is a prime.

It is a super-2 number, since 2×13003421431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13003421437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365055 + ... + 399088.

It is an arithmetic number, because the mean of its divisors is an integer number (577692864).

Almost surely, 2^13003421431 is an apocalyptic number.

13003421431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13003421431 is a deficient number, since it is larger than the sum of its proper divisors (5482750217).

13003421431 is a wasteful number, since it uses less digits than its factorization.

13003421431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764191.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13003421431 its reverse (13412430031), we get a palindrome (26415851462).

It can be divided in two parts, 13003 and 421431, that added together give a palindrome (434434).

The spelling of 13003421431 in words is "thirteen billion, three million, four hundred twenty-one thousand, four hundred thirty-one".