2121421130311 has 8 divisors (see below), whose sum is σ = 2437876217504. Its totient is φ = 1808314774560.

The previous prime is 2121421130303. The next prime is 2121421130327. The reversal of 2121421130311 is 1130311241212.

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

It is not a de Polignac number, because 2121421130311 - 2³ = 2121421130303 is a prime.

It is a super-2 number, since 2×2121421130311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121421130371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837181500 + ... + 837184033.

It is an arithmetic number, because the mean of its divisors is an integer number (304734527188).

Almost surely, 2^{2121421130311} is an apocalyptic number.

2121421130311 is a deficient number, since it is larger than the sum of its proper divisors (316455087193).

2121421130311 is a wasteful number, since it uses less digits than its factorization.

2121421130311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674365721.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 2121421130311 its reverse (1130311241212), we get a palindrome (3251732371523).

The spelling of 2121421130311 in words is "two trillion, one hundred twenty-one billion, four hundred twenty-one million, one hundred thirty thousand, three hundred eleven".