13154251543431 has 8 divisors (see below), whose sum is σ = 17574723041664. Its totient is φ = 8751640537080.

The previous prime is 13154251543423. The next prime is 13154251543441. The reversal of 13154251543431 is 13434515245131.

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

It is not a de Polignac number, because 13154251543431 - 2³ = 13154251543423 is a prime.

It is a super-2 number, since 2×13154251543431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13154251543421) 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, 4465121251 + ... + 4465124196.

It is an arithmetic number, because the mean of its divisors is an integer number (2196840380208).

Almost surely, 2^{13154251543431} is an apocalyptic number.

13154251543431 is a deficient number, since it is larger than the sum of its proper divisors (4420471498233).

13154251543431 is an equidigital number, since it uses as much as digits as its factorization.

13154251543431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8930245941.

The product of its digits is 432000, while the sum is 42.

Adding to 13154251543431 its reverse (13434515245131), we get a palindrome (26588766788562).

The spelling of 13154251543431 in words is "thirteen trillion, one hundred fifty-four billion, two hundred fifty-one million, five hundred forty-three thousand, four hundred thirty-one".