13454321291 has 2 divisors, whose sum is σ = 13454321292. Its totient is φ = 13454321290.

The previous prime is 13454321269. The next prime is 13454321303. The reversal of 13454321291 is 19212345431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13454321291 - 2⁶ = 13454321227 is a prime.

It is a super-2 number, since 2×13454321291² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13454351291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6727160645 + 6727160646.

It is an arithmetic number, because the mean of its divisors is an integer number (6727160646).

Almost surely, 2^13454321291 is an apocalyptic number.

13454321291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13454321291 is an equidigital number, since it uses as much as digits as its factorization.

13454321291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The spelling of 13454321291 in words is "thirteen billion, four hundred fifty-four million, three hundred twenty-one thousand, two hundred ninety-one".