1121520035 has 16 divisors (see below), whose sum is σ = 1375018752. Its totient is φ = 877932000.

The previous prime is 1121520031. The next prime is 1121520041. The reversal of 1121520035 is 5300251211.

It is a happy number.

It is not a de Polignac number, because 1121520035 - 2² = 1121520031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121519989 and 1121520016.

It is not an unprimeable number, because it can be changed into a prime (1121520031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39500 + ... + 61670.

It is an arithmetic number, because the mean of its divisors is an integer number (85938672).

Almost surely, 2^1121520035 is an apocalyptic number.

1121520035 is a deficient number, since it is larger than the sum of its proper divisors (253498717).

1121520035 is a wasteful number, since it uses less digits than its factorization.

1121520035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22394.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1121520035 is about 33489.1032277665. The cubic root of 1121520035 is about 1038.9684158964.

Adding to 1121520035 its reverse (5300251211), we get a palindrome (6421771246).

The spelling of 1121520035 in words is "one billion, one hundred twenty-one million, five hundred twenty thousand, thirty-five".