2121132423242 has 16 divisors (see below), whose sum is σ = 3636370426752. Its totient is φ = 909020898960.

The previous prime is 2121132423239. The next prime is 2121132423259. The reversal of 2121132423242 is 2423242311212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2618609 + ... + 3331572.

It is an arithmetic number, because the mean of its divisors is an integer number (227273151672).

Almost surely, 2^{2121132423242} is an apocalyptic number.

2121132423242 is a deficient number, since it is larger than the sum of its proper divisors (1515238003510).

2121132423242 is a wasteful number, since it uses less digits than its factorization.

2121132423242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5975653.

The product of its digits is 9216, while the sum is 29.

Adding to 2121132423242 its reverse (2423242311212), we get a palindrome (4544374734454).

The spelling of 2121132423242 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-two million, four hundred twenty-three thousand, two hundred forty-two".