2113412251 has 4 divisors (see below), whose sum is σ = 2114358400. Its totient is φ = 2112466104.

The previous prime is 2113412209. The next prime is 2113412267. The reversal of 2113412251 is 1522143112.

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 2113412251 - 2¹⁹ = 2112887963 is a prime.

It is a super-2 number, since 2×2113412251² = 8933022685353774002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113412051) 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, 469716 + ... + 474193.

It is an arithmetic number, because the mean of its divisors is an integer number (528589600).

Almost surely, 2^2113412251 is an apocalyptic number.

2113412251 is a deficient number, since it is larger than the sum of its proper divisors (946149).

2113412251 is an equidigital number, since it uses as much as digits as its factorization.

2113412251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946148.

The product of its digits is 480, while the sum is 22.

The square root of 2113412251 is about 45971.8636885650. The cubic root of 2113412251 is about 1283.2996432527.

Adding to 2113412251 its reverse (1522143112), we get a palindrome (3635555363).

The spelling of 2113412251 in words is "two billion, one hundred thirteen million, four hundred twelve thousand, two hundred fifty-one".