1002342121 has 4 divisors (see below), whose sum is σ = 1093464144. Its totient is φ = 911220100.

The previous prime is 1002342073. The next prime is 1002342149. The reversal of 1002342121 is 1212432001.

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 1002342121 - 2²¹ = 1000244969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002342095 and 1002342104.

It is not an unprimeable number, because it can be changed into a prime (1002342161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45560995 + ... + 45561016.

It is an arithmetic number, because the mean of its divisors is an integer number (273366036).

Almost surely, 2^1002342121 is an apocalyptic number.

1002342121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002342121 is a deficient number, since it is larger than the sum of its proper divisors (91122023).

1002342121 is an equidigital number, since it uses as much as digits as its factorization.

1002342121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91122022.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1002342121 is about 31659.7871281536. The cubic root of 1002342121 is about 1000.7800982884.

Adding to 1002342121 its reverse (1212432001), we get a palindrome (2214774122).

The spelling of 1002342121 in words is "one billion, two million, three hundred forty-two thousand, one hundred twenty-one".