1121062013 has 4 divisors (see below), whose sum is σ = 1125424380. Its totient is φ = 1116699648.

The previous prime is 1121061967. The next prime is 1121062031. The reversal of 1121062013 is 3102601211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1104764644 + 16297369 = 33238^2 + 4037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121062013 is a prime.

It is a super-2 number, since 2×1121062013² = 2513560073983224338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121061982 and 1121062000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121062213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2180798 + ... + 2181311.

It is an arithmetic number, because the mean of its divisors is an integer number (281356095).

Almost surely, 2^1121062013 is an apocalyptic number.

It is an amenable number.

1121062013 is a deficient number, since it is larger than the sum of its proper divisors (4362367).

1121062013 is an equidigital number, since it uses as much as digits as its factorization.

1121062013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362366.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1121062013 is about 33482.2641558184. The cubic root of 1121062013 is about 1038.8269604988.

Adding to 1121062013 its reverse (3102601211), we get a palindrome (4223663224).

The spelling of 1121062013 in words is "one billion, one hundred twenty-one million, sixty-two thousand, thirteen".