12731051155 has 8 divisors (see below), whose sum is σ = 15277866912. Its totient is φ = 10184437248.

The previous prime is 12731051117. The next prime is 12731051159. The reversal of 12731051155 is 55115013721.

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

It is a cyclic number.

It is not a de Polignac number, because 12731051155 - 2²¹ = 12728954003 is a prime.

It is a super-3 number, since 3×12731051155³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12731051159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226867 + ... + 277363.

It is an arithmetic number, because the mean of its divisors is an integer number (1909733364).

Almost surely, 2^12731051155 is an apocalyptic number.

12731051155 is a deficient number, since it is larger than the sum of its proper divisors (2546815757).

12731051155 is an equidigital number, since it uses as much as digits as its factorization.

12731051155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100925.

The product of its (nonzero) digits is 5250, while the sum is 31.

Adding to 12731051155 its reverse (55115013721), we get a palindrome (67846064876).

The spelling of 12731051155 in words is "twelve billion, seven hundred thirty-one million, fifty-one thousand, one hundred fifty-five".