1119921043 has 4 divisors (see below), whose sum is σ = 1158539040. Its totient is φ = 1081303048.

The previous prime is 1119921031. The next prime is 1119921059. The reversal of 1119921043 is 3401299111.

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

It is a de Polignac number, because none of the positive numbers 2^k-1119921043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1119920996 and 1119921014.

It is not an unprimeable number, because it can be changed into a prime (1119921073) 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, 19308955 + ... + 19309012.

It is an arithmetic number, because the mean of its divisors is an integer number (289634760).

Almost surely, 2^1119921043 is an apocalyptic number.

1119921043 is a deficient number, since it is larger than the sum of its proper divisors (38617997).

1119921043 is an equidigital number, since it uses as much as digits as its factorization.

1119921043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38617996.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1119921043 is about 33465.2213947555. The cubic root of 1119921043 is about 1038.4744160017.

The spelling of 1119921043 in words is "one billion, one hundred nineteen million, nine hundred twenty-one thousand, forty-three".