1002603121423 has 4 divisors (see below), whose sum is σ = 1025919473128. Its totient is φ = 979286769720.

The previous prime is 1002603121411. The next prime is 1002603121427. The reversal of 1002603121423 is 3241213062001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002603121423 - 2¹⁷ = 1002602990351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002603121427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11658175788 + ... + 11658175873.

It is an arithmetic number, because the mean of its divisors is an integer number (256479868282).

Almost surely, 2^{1002603121423} is an apocalyptic number.

1002603121423 is a deficient number, since it is larger than the sum of its proper divisors (23316351705).

1002603121423 is an equidigital number, since it uses as much as digits as its factorization.

1002603121423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23316351704.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1002603121423 its reverse (3241213062001), we get a palindrome (4243816183424).

The spelling of 1002603121423 in words is "one trillion, two billion, six hundred three million, one hundred twenty-one thousand, four hundred twenty-three".