1121302013 has 12 divisors (see below), whose sum is σ = 1236318300. Its totient is φ = 1010955456.

The previous prime is 1121302001. The next prime is 1121302037. The reversal of 1121302013 is 3102031211.

It can be written as a sum of positive squares in 2 ways, for example, as 424236409 + 697065604 = 20597^2 + 26402^2 .

It is not a de Polignac number, because 1121302013 - 2⁶ = 1121301949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121302213) 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 11 ways as a sum of consecutive naturals, for example, 713 + ... + 47361.

It is an arithmetic number, because the mean of its divisors is an integer number (103026525).

Almost surely, 2^1121302013 is an apocalyptic number.

1121302013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1121302013 is a deficient number, since it is larger than the sum of its proper divisors (115016287).

1121302013 is an equidigital number, since it uses as much as digits as its factorization.

1121302013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46748 (or 46705 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1121302013 is about 33485.8479510375. The cubic root of 1121302013 is about 1038.9010868415.

Adding to 1121302013 its reverse (3102031211), we get a palindrome (4223333224).

The spelling of 1121302013 in words is "one billion, one hundred twenty-one million, three hundred two thousand, thirteen".