1121780770 has 32 divisors (see below), whose sum is σ = 2217585600. Its totient is φ = 405176640.

The previous prime is 1121780749. The next prime is 1121780791. The reversal of 1121780770 is 770871211.

It is an interprime number because it is at equal distance from previous prime (1121780749) and next prime (1121780791).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17832 + ... + 50611.

It is an arithmetic number, because the mean of its divisors is an integer number (69299550).

Almost surely, 2^1121780770 is an apocalyptic number.

1121780770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121780770 is a deficient number, since it is larger than the sum of its proper divisors (1095804830).

1121780770 is a wasteful number, since it uses less digits than its factorization.

1121780770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68610.

The product of its (nonzero) digits is 5488, while the sum is 34.

The square root of 1121780770 is about 33492.9958349503. The cubic root of 1121780770 is about 1039.0489240256.

The spelling of 1121780770 in words is "one billion, one hundred twenty-one million, seven hundred eighty thousand, seven hundred seventy".