1002131332399 has 4 divisors (see below), whose sum is σ = 1004707505880. Its totient is φ = 999555158920.

The previous prime is 1002131332393. The next prime is 1002131332427. The reversal of 1002131332399 is 9932331312001.

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 1002131332399 - 2¹⁹ = 1002130808111 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 (1002131332393) 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, 1288086157 + ... + 1288086934.

It is an arithmetic number, because the mean of its divisors is an integer number (251176876470).

Almost surely, 2^{1002131332399} is an apocalyptic number.

1002131332399 is a deficient number, since it is larger than the sum of its proper divisors (2576173481).

1002131332399 is an equidigital number, since it uses as much as digits as its factorization.

1002131332399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576173480.

The product of its (nonzero) digits is 26244, while the sum is 37.

The spelling of 1002131332399 in words is "one trillion, two billion, one hundred thirty-one million, three hundred thirty-two thousand, three hundred ninety-nine".