2551120043 has 2 divisors, whose sum is σ = 2551120044. Its totient is φ = 2551120042.

The previous prime is 2551120021. The next prime is 2551120093. The reversal of 2551120043 is 3400211552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2551120043 - 2¹⁰ = 2551119019 is a prime.

It is not a weakly prime, because it can be changed into another prime (2551120093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275560021 + 1275560022.

It is an arithmetic number, because the mean of its divisors is an integer number (1275560022).

Almost surely, 2^2551120043 is an apocalyptic number.

2551120043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551120043 is an equidigital number, since it uses as much as digits as its factorization.

2551120043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2551120043 is about 50508.6135525417. The cubic root of 2551120043 is about 1366.3972048624.

Adding to 2551120043 its reverse (3400211552), we get a palindrome (5951331595).

It can be divided in two parts, 25511 and 20043, that added together give a palindrome (45554).

The spelling of 2551120043 in words is "two billion, five hundred fifty-one million, one hundred twenty thousand, forty-three".