243312034321051 has 4 divisors (see below), whose sum is σ = 246045877403400. Its totient is φ = 240578191238704.

The previous prime is 243312034321021. The next prime is 243312034321079. The reversal of 243312034321051 is 150123430213342.

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 243312034321051 - 2¹³ = 243312034312859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243312034320998 and 243312034321016.

It is not an unprimeable number, because it can be changed into a prime (243312034321021) 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, 1366921541041 + ... + 1366921541218.

It is an arithmetic number, because the mean of its divisors is an integer number (61511469350850).

Almost surely, 2^{243312034321051} is an apocalyptic number.

243312034321051 is a deficient number, since it is larger than the sum of its proper divisors (2733843082349).

243312034321051 is an equidigital number, since it uses as much as digits as its factorization.

243312034321051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733843082348.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 243312034321051 its reverse (150123430213342), we get a palindrome (393435464534393).

The spelling of 243312034321051 in words is "two hundred forty-three trillion, three hundred twelve billion, thirty-four million, three hundred twenty-one thousand, fifty-one".