1121042351 has 16 divisors (see below), whose sum is σ = 1386349440. Its totient is φ = 891220320.

The previous prime is 1121042341. The next prime is 1121042371. The reversal of 1121042351 is 1532401211.

It is a cyclic number.

It is not a de Polignac number, because 1121042351 - 2²⁶ = 1053933487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121042341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203585 + ... + 209018.

It is an arithmetic number, because the mean of its divisors is an integer number (86646840).

Almost surely, 2^1121042351 is an apocalyptic number.

1121042351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121042351 is a deficient number, since it is larger than the sum of its proper divisors (265307089).

1121042351 is a wasteful number, since it uses less digits than its factorization.

1121042351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412646.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1121042351 is about 33481.9705363947. The cubic root of 1121042351 is about 1038.8208872293.

Adding to 1121042351 its reverse (1532401211), we get a palindrome (2653443562).

The spelling of 1121042351 in words is "one billion, one hundred twenty-one million, forty-two thousand, three hundred fifty-one".