12145410100155 has 32 divisors (see below), whose sum is σ = 19799637947136. Its totient is φ = 6355228840064.

The previous prime is 12145410100151. The next prime is 12145410100181. The reversal of 12145410100155 is 55100101454121.

It is a cyclic number.

It is not a de Polignac number, because 12145410100155 - 2² = 12145410100151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12145410100151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79075864 + ... + 79229306.

It is an arithmetic number, because the mean of its divisors is an integer number (618738685848).

Almost surely, 2^{12145410100155} is an apocalyptic number.

12145410100155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12145410100155 is a deficient number, since it is larger than the sum of its proper divisors (7654227846981).

12145410100155 is a wasteful number, since it uses less digits than its factorization.

12145410100155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253067.

The product of its (nonzero) digits is 4000, while the sum is 30.

Adding to 12145410100155 its reverse (55100101454121), we get a palindrome (67245511554276).

The spelling of 12145410100155 in words is "twelve trillion, one hundred forty-five billion, four hundred ten million, one hundred thousand, one hundred fifty-five".