1002300121 has 4 divisors (see below), whose sum is σ = 1005031552. Its totient is φ = 999568692.

The previous prime is 1002300077. The next prime is 1002300191. The reversal of 1002300121 is 1210032001.

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 1002300121 - 2²¹ = 1000202969 is a prime.

It is a super-2 number, since 2×1002300121² = 2009211065113229282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002300098 and 1002300107.

It is not an unprimeable number, because it can be changed into a prime (1002300191) 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, 1365165 + ... + 1365898.

It is an arithmetic number, because the mean of its divisors is an integer number (251257888).

Almost surely, 2^1002300121 is an apocalyptic number.

It is an amenable number.

1002300121 is a deficient number, since it is larger than the sum of its proper divisors (2731431).

1002300121 is an equidigital number, since it uses as much as digits as its factorization.

1002300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731430.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1002300121 is about 31659.1238192089. The cubic root of 1002300121 is about 1000.7661199104.

Adding to 1002300121 its reverse (1210032001), we get a palindrome (2212332122).

The spelling of 1002300121 in words is "one billion, two million, three hundred thousand, one hundred twenty-one".