2123411351 has 4 divisors (see below), whose sum is σ = 2123817072. Its totient is φ = 2123005632.

The previous prime is 2123411347. The next prime is 2123411387. The reversal of 2123411351 is 1531143212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2123411351 - 2² = 2123411347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123411651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194906 + ... + 205511.

It is an arithmetic number, because the mean of its divisors is an integer number (530954268).

Almost surely, 2^2123411351 is an apocalyptic number.

2123411351 is a deficient number, since it is larger than the sum of its proper divisors (405721).

2123411351 is an equidigital number, since it uses as much as digits as its factorization.

2123411351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405720.

The product of its digits is 720, while the sum is 23.

The square root of 2123411351 is about 46080.4877469846. The cubic root of 2123411351 is about 1285.3203339724.

Adding to 2123411351 its reverse (1531143212), we get a palindrome (3654554563).

The spelling of 2123411351 in words is "two billion, one hundred twenty-three million, four hundred eleven thousand, three hundred fifty-one".