2042313121 has 2 divisors, whose sum is σ = 2042313122. Its totient is φ = 2042313120.

The previous prime is 2042313113. The next prime is 2042313151. The reversal of 2042313121 is 1213132402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1991390625 + 50922496 = 44625^2 + 7136^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042313121 - 2³ = 2042313113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2042313151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021156560 + 1021156561.

It is an arithmetic number, because the mean of its divisors is an integer number (1021156561).

Almost surely, 2^2042313121 is an apocalyptic number.

It is an amenable number.

2042313121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042313121 is an equidigital number, since it uses as much as digits as its factorization.

2042313121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2042313121 is about 45191.9585877842. The cubic root of 2042313121 is about 1268.7443147084.

Adding to 2042313121 its reverse (1213132402), we get a palindrome (3255445523).

The spelling of 2042313121 in words is "two billion, forty-two million, three hundred thirteen thousand, one hundred twenty-one".