1120042551 has 16 divisors (see below), whose sum is σ = 1552658688. Its totient is φ = 717604800.

The previous prime is 1120042531. The next prime is 1120042589. The reversal of 1120042551 is 1552400211.

It is not a de Polignac number, because 1120042551 - 2⁷ = 1120042423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120042531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59715 + ... + 76196.

It is an arithmetic number, because the mean of its divisors is an integer number (97041168).

Almost surely, 2^1120042551 is an apocalyptic number.

1120042551 is a deficient number, since it is larger than the sum of its proper divisors (432616137).

1120042551 is a wasteful number, since it uses less digits than its factorization.

1120042551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136022.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1120042551 is about 33467.0367824820. The cubic root of 1120042551 is about 1038.5119717404.

Adding to 1120042551 its reverse (1552400211), we get a palindrome (2672442762).

The spelling of 1120042551 in words is "one billion, one hundred twenty million, forty-two thousand, five hundred fifty-one".