1120520401 has 32 divisors (see below), whose sum is σ = 1513709568. Its totient is φ = 801023040.

The previous prime is 1120520399. The next prime is 1120520441. The reversal of 1120520401 is 1040250211.

It is a cyclic number.

It is not a de Polignac number, because 1120520401 - 2¹ = 1120520399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1120520441) 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 31 ways as a sum of consecutive naturals, for example, 163816 + ... + 170518.

It is an arithmetic number, because the mean of its divisors is an integer number (47303424).

Almost surely, 2^1120520401 is an apocalyptic number.

1120520401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1120520401 is a deficient number, since it is larger than the sum of its proper divisors (393189167).

1120520401 is a wasteful number, since it uses less digits than its factorization.

1120520401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6901.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1120520401 is about 33474.1751354682. The cubic root of 1120520401 is about 1038.6596394604.

Adding to 1120520401 its reverse (1040250211), we get a palindrome (2160770612).

The spelling of 1120520401 in words is "one billion, one hundred twenty million, five hundred twenty thousand, four hundred one".