1183820012 has 12 divisors (see below), whose sum is σ = 2072184576. Its totient is φ = 591767280.

The previous prime is 1183820009. The next prime is 1183820021. The reversal of 1183820012 is 2100283811.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15788 + ... + 51155.

It is an arithmetic number, because the mean of its divisors is an integer number (172682048).

Almost surely, 2^1183820012 is an apocalyptic number.

It is an amenable number.

1183820012 is a deficient number, since it is larger than the sum of its proper divisors (888364564).

1183820012 is a wasteful number, since it uses less digits than its factorization.

1183820012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71368 (or 71366 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1183820012 is about 34406.6855712665. The cubic root of 1183820012 is about 1057.8608848644.

The spelling of 1183820012 in words is "one billion, one hundred eighty-three million, eight hundred twenty thousand, twelve".