1002345023503 has 16 divisors (see below), whose sum is σ = 1069054560000. Its totient is φ = 937112766912.

The previous prime is 1002345023501. The next prime is 1002345023509. The reversal of 1002345023503 is 3053205432001.

It is a cyclic number.

It is not a de Polignac number, because 1002345023503 - 2¹ = 1002345023501 is a prime.

It is a super-2 number, since 2×1002345023503² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002345023501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695278 + ... + 1577371.

It is an arithmetic number, because the mean of its divisors is an integer number (66815910000).

Almost surely, 2^{1002345023503} is an apocalyptic number.

1002345023503 is a deficient number, since it is larger than the sum of its proper divisors (66709536497).

1002345023503 is a wasteful number, since it uses less digits than its factorization.

1002345023503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272974.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 1002345023503 in words is "one trillion, two billion, three hundred forty-five million, twenty-three thousand, five hundred three".