2003455430123 has 32 divisors (see below), whose sum is σ = 2488059763200. Its totient is φ = 1574262065664.

The previous prime is 2003455430099. The next prime is 2003455430129. The reversal of 2003455430123 is 3210345543002.

It is a cyclic number.

It is not a de Polignac number, because 2003455430123 - 2²⁸ = 2003186994667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2003455430123.

It is not an unprimeable number, because it can be changed into a prime (2003455430129) 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, 543665 + ... + 2074242.

It is an arithmetic number, because the mean of its divisors is an integer number (77751867600).

Almost surely, 2^{2003455430123} is an apocalyptic number.

2003455430123 is a deficient number, since it is larger than the sum of its proper divisors (484604333077).

2003455430123 is a wasteful number, since it uses less digits than its factorization.

2003455430123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618099.

The product of its (nonzero) digits is 43200, while the sum is 32.

The spelling of 2003455430123 in words is "two trillion, three billion, four hundred fifty-five million, four hundred thirty thousand, one hundred twenty-three".