243110452551 has 32 divisors (see below), whose sum is σ = 333815634432. Its totient is φ = 157323573120.

The previous prime is 243110452513. The next prime is 243110452561. The reversal of 243110452551 is 155254011342.

It is not a de Polignac number, because 243110452551 - 2¹⁴ = 243110436167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243110452561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5156481 + ... + 5203413.

It is an arithmetic number, because the mean of its divisors is an integer number (10431738576).

Almost surely, 2^243110452551 is an apocalyptic number.

243110452551 is a deficient number, since it is larger than the sum of its proper divisors (90705181881).

243110452551 is a wasteful number, since it uses less digits than its factorization.

243110452551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47383.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 243110452551 its reverse (155254011342), we get a palindrome (398364463893).

The spelling of 243110452551 in words is "two hundred forty-three billion, one hundred ten million, four hundred fifty-two thousand, five hundred fifty-one".