2342042121 has 4 divisors (see below), whose sum is σ = 3122722832. Its totient is φ = 1561361412.

The previous prime is 2342042107. The next prime is 2342042141. The reversal of 2342042121 is 1212402432.

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 not a de Polignac number, because 2342042121 - 2¹⁵ = 2342009353 is a prime.

It is a super-2 number, since 2×2342042121² = 10970322593076357282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2342042141) 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, 390340351 + ... + 390340356.

It is an arithmetic number, because the mean of its divisors is an integer number (780680708).

Almost surely, 2^2342042121 is an apocalyptic number.

It is an amenable number.

2342042121 is a deficient number, since it is larger than the sum of its proper divisors (780680711).

2342042121 is an equidigital number, since it uses as much as digits as its factorization.

2342042121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780680710.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2342042121 is about 48394.6497146120. The cubic root of 2342042121 is about 1328.0004855641. Note that the first 3 decimals are identical.

Adding to 2342042121 its reverse (1212402432), we get a palindrome (3554444553).

The spelling of 2342042121 in words is "two billion, three hundred forty-two million, forty-two thousand, one hundred twenty-one".