1002545321403 has 4 divisors (see below), whose sum is σ = 1336727095208. Its totient is φ = 668363547600.

The previous prime is 1002545321387. The next prime is 1002545321419. The reversal of 1002545321403 is 3041235452001.

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

It is an interprime number because it is at equal distance from previous prime (1002545321387) and next prime (1002545321419).

It is not a de Polignac number, because 1002545321403 - 2⁴ = 1002545321387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002545321203) 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, 167090886898 + ... + 167090886903.

It is an arithmetic number, because the mean of its divisors is an integer number (334181773802).

Almost surely, 2^{1002545321403} is an apocalyptic number.

1002545321403 is a deficient number, since it is larger than the sum of its proper divisors (334181773805).

1002545321403 is an equidigital number, since it uses as much as digits as its factorization.

1002545321403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334181773804.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 1002545321403 in words is "one trillion, two billion, five hundred forty-five million, three hundred twenty-one thousand, four hundred three".