2121403101242 has 8 divisors (see below), whose sum is σ = 3212998872096. Its totient is φ = 1050403477212.

The previous prime is 2121403101211. The next prime is 2121403101269. The reversal of 2121403101242 is 2421013041212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2121403101242² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5149036448 + ... + 5149036859.

It is an arithmetic number, because the mean of its divisors is an integer number (401624859012).

Almost surely, 2^{2121403101242} is an apocalyptic number.

2121403101242 is a deficient number, since it is larger than the sum of its proper divisors (1091595770854).

2121403101242 is a wasteful number, since it uses less digits than its factorization.

2121403101242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298073412.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 2121403101242 its reverse (2421013041212), we get a palindrome (4542416142454).

The spelling of 2121403101242 in words is "two trillion, one hundred twenty-one billion, four hundred three million, one hundred one thousand, two hundred forty-two".