243441100051 has 4 divisors (see below), whose sum is σ = 246176393400. Its totient is φ = 240705806704.

The previous prime is 243441100027. The next prime is 243441100061. The reversal of 243441100051 is 150001144342.

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 243441100051 - 2¹¹ = 243441098003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243441099989 and 243441100025.

It is not an unprimeable number, because it can be changed into a prime (243441100061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367646541 + ... + 1367646718.

It is an arithmetic number, because the mean of its divisors is an integer number (61544098350).

Almost surely, 2^243441100051 is an apocalyptic number.

243441100051 is a deficient number, since it is larger than the sum of its proper divisors (2735293349).

243441100051 is an equidigital number, since it uses as much as digits as its factorization.

243441100051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735293348.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 243441100051 its reverse (150001144342), we get a palindrome (393442244393).

The spelling of 243441100051 in words is "two hundred forty-three billion, four hundred forty-one million, one hundred thousand, fifty-one".