1503121413255 has 128 divisors (see below), whose sum is σ = 3064017715200. Its totient is φ = 611026199040.

The previous prime is 1503121413181. The next prime is 1503121413293. The reversal of 1503121413255 is 5523141213051.

It is not a de Polignac number, because 1503121413255 - 2¹⁴ = 1503121396871 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 105794362 + ... + 105808568.

It is an arithmetic number, because the mean of its divisors is an integer number (23937638400).

Almost surely, 2^{1503121413255} is an apocalyptic number.

1503121413255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1503121413255 is an abundant number, since it is smaller than the sum of its proper divisors (1560896301945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1503121413255 is a wasteful number, since it uses less digits than its factorization.

1503121413255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16229.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 1503121413255 in words is "one trillion, five hundred three billion, one hundred twenty-one million, four hundred thirteen thousand, two hundred fifty-five".