1202340121 has 4 divisors (see below), whose sum is σ = 1265621200. Its totient is φ = 1139059044.

The previous prime is 1202340109. The next prime is 1202340127. The reversal of 1202340121 is 1210432021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1210432021 = 6997 ⋅172993.

It is not a de Polignac number, because 1202340121 - 2⁷ = 1202339993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202340095 and 1202340104.

It is not an unprimeable number, because it can be changed into a prime (1202340127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31640511 + ... + 31640548.

It is an arithmetic number, because the mean of its divisors is an integer number (316405300).

Almost surely, 2^1202340121 is an apocalyptic number.

It is an amenable number.

1202340121 is a deficient number, since it is larger than the sum of its proper divisors (63281079).

1202340121 is an equidigital number, since it uses as much as digits as its factorization.

1202340121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63281078.

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

The square root of 1202340121 is about 34674.7764376355. The cubic root of 1202340121 is about 1063.3488844359.

Adding to 1202340121 its reverse (1210432021), we get a palindrome (2412772142).

The spelling of 1202340121 in words is "one billion, two hundred two million, three hundred forty thousand, one hundred twenty-one".