13431542100449 has 8 divisors (see below), whose sum is σ = 14773687180320. Its totient is φ = 12210492817380.

The previous prime is 13431542100443. The next prime is 13431542100469. The reversal of 13431542100449 is 94400124513431.

13431542100449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13431542100449 - 2³⁶ = 13362822623713 is a prime.

It is a super-2 number, since 2×13431542100449² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13431542100443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5045656859 + ... + 5045659520.

It is an arithmetic number, because the mean of its divisors is an integer number (1846710897540).

Almost surely, 2^{13431542100449} is an apocalyptic number.

It is an amenable number.

13431542100449 is a deficient number, since it is larger than the sum of its proper divisors (1342145079871).

13431542100449 is an equidigital number, since it uses as much as digits as its factorization.

13431542100449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10091316412 (or 10091316390 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 13431542100449 in words is "thirteen trillion, four hundred thirty-one billion, five hundred forty-two million, one hundred thousand, four hundred forty-nine".