13145431041105 has 32 divisors (see below), whose sum is σ = 22996546513920. Its totient is φ = 6359155058880.

The previous prime is 13145431041031. The next prime is 13145431041157. The reversal of 13145431041105 is 50114013454131.

It is not a de Polignac number, because 13145431041105 - 2⁷ = 13145431040977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89847085 + ... + 89993274.

It is an arithmetic number, because the mean of its divisors is an integer number (718642078560).

Almost surely, 2^{13145431041105} is an apocalyptic number.

13145431041105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13145431041105 is a deficient number, since it is larger than the sum of its proper divisors (9851115472815).

13145431041105 is a wasteful number, since it uses less digits than its factorization.

13145431041105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179840821.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 13145431041105 its reverse (50114013454131), we get a palindrome (63259444495236).

The spelling of 13145431041105 in words is "thirteen trillion, one hundred forty-five billion, four hundred thirty-one million, forty-one thousand, one hundred five".