242700118611551 has 4 divisors (see below), whose sum is σ = 245624216426232. Its totient is φ = 239776020796872.

The previous prime is 242700118611487. The next prime is 242700118611557. The reversal of 242700118611551 is 155116811007242.

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 242700118611551 - 2⁶ = 242700118611487 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 (242700118611557) 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, 1462048907216 + ... + 1462048907381.

It is an arithmetic number, because the mean of its divisors is an integer number (61406054106558).

Almost surely, 2^{242700118611551} is an apocalyptic number.

242700118611551 is a deficient number, since it is larger than the sum of its proper divisors (2924097814681).

242700118611551 is an equidigital number, since it uses as much as digits as its factorization.

242700118611551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924097814680.

The product of its (nonzero) digits is 134400, while the sum is 44.

Adding to 242700118611551 its reverse (155116811007242), we get a palindrome (397816929618793).

The spelling of 242700118611551 in words is "two hundred forty-two trillion, seven hundred billion, one hundred eighteen million, six hundred eleven thousand, five hundred fifty-one".