13453042281 has 16 divisors (see below), whose sum is σ = 20521104384. Its totient is φ = 7679491344.

The previous prime is 13453042277. The next prime is 13453042289. The reversal of 13453042281 is 18224035431.

It is not a de Polignac number, because 13453042281 - 2² = 13453042277 is a prime.

It is a super-2 number, since 2×13453042281² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13453042289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310935 + ... + 351548.

It is an arithmetic number, because the mean of its divisors is an integer number (1282569024).

Almost surely, 2^13453042281 is an apocalyptic number.

It is an amenable number.

13453042281 is a deficient number, since it is larger than the sum of its proper divisors (7068062103).

13453042281 is an equidigital number, since it uses as much as digits as its factorization.

13453042281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663460.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 13453042281 in words is "thirteen billion, four hundred fifty-three million, forty-two thousand, two hundred eighty-one".