13431544501 has 8 divisors (see below), whose sum is σ = 14223671064. Its totient is φ = 12639644160.

The previous prime is 13431544481. The next prime is 13431544519. The reversal of 13431544501 is 10544513431.

It can be written as a sum of positive squares in 4 ways, for example, as 8658116401 + 4773428100 = 93049^2 + 69090^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13431544501 - 2⁹ = 13431543989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431544541) 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, 74371 + ... + 179983.

It is an arithmetic number, because the mean of its divisors is an integer number (1777958883).

Almost surely, 2^13431544501 is an apocalyptic number.

It is an amenable number.

13431544501 is a deficient number, since it is larger than the sum of its proper divisors (792126563).

13431544501 is a wasteful number, since it uses less digits than its factorization.

13431544501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113111.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 13431544501 in words is "thirteen billion, four hundred thirty-one million, five hundred forty-four thousand, five hundred one".