1121320012 has 24 divisors (see below), whose sum is σ = 2053094400. Its totient is φ = 534851856.

The previous prime is 1121320009. The next prime is 1121320027. The reversal of 1121320012 is 2100231211.

It is a junction number, because it is equal to n+sod(n) for n = 1121319974 and 1121320001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18789 + ... + 50947.

It is an arithmetic number, because the mean of its divisors is an integer number (85545600).

Almost surely, 2^1121320012 is an apocalyptic number.

It is an amenable number.

1121320012 is a deficient number, since it is larger than the sum of its proper divisors (931774388).

1121320012 is a wasteful number, since it uses less digits than its factorization.

1121320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32565 (or 32563 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1121320012 is about 33486.1167052855. The cubic root of 1121320012 is about 1038.9066455820.

Adding to 1121320012 its reverse (2100231211), we get a palindrome (3221551223).

The spelling of 1121320012 in words is "one billion, one hundred twenty-one million, three hundred twenty thousand, twelve".