1002130309 has 4 divisors (see below), whose sum is σ = 1045701216. Its totient is φ = 958559404.

The previous prime is 1002130279. The next prime is 1002130313. The reversal of 1002130309 is 9030312001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1002130309 - 2⁵ = 1002130277 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 (1002130109) 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, 21785419 + ... + 21785464.

It is an arithmetic number, because the mean of its divisors is an integer number (261425304).

Almost surely, 2^1002130309 is an apocalyptic number.

It is an amenable number.

1002130309 is a deficient number, since it is larger than the sum of its proper divisors (43570907).

1002130309 is an equidigital number, since it uses as much as digits as its factorization.

1002130309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43570906.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1002130309 is about 31656.4418246903. The cubic root of 1002130309 is about 1000.7095993497.

The spelling of 1002130309 in words is "one billion, two million, one hundred thirty thousand, three hundred nine".