1119111978 has 32 divisors (see below), whose sum is σ = 2279229120. Its totient is φ = 366226560.

The previous prime is 1119111977. The next prime is 1119111979. The reversal of 1119111978 is 8791119111.

It is an interprime number because it is at equal distance from previous prime (1119111977) and next prime (1119111979).

It is a super-3 number, since 3×1119111978³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1119111977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212238 + ... + 217446.

It is an arithmetic number, because the mean of its divisors is an integer number (71225910).

Almost surely, 2^1119111978 is an apocalyptic number.

1119111978 is an abundant number, since it is smaller than the sum of its proper divisors (1160117142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1119111978 is a wasteful number, since it uses less digits than its factorization.

1119111978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862.

The product of its digits is 4536, while the sum is 39.

The square root of 1119111978 is about 33453.1310642218. The cubic root of 1119111978 is about 1038.2242805965.

The spelling of 1119111978 in words is "one billion, one hundred nineteen million, one hundred eleven thousand, nine hundred seventy-eight".