120843811 has 8 divisors (see below), whose sum is σ = 132000048. Its totient is φ = 109716000.

The previous prime is 120843761. The next prime is 120843881. The reversal of 120843811 is 118348021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120843811 - 2⁷ = 120843683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120843811.

It is not an unprimeable number, because it can be changed into a prime (120843881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2341 + ... + 15721.

It is an arithmetic number, because the mean of its divisors is an integer number (16500006).

Almost surely, 2^120843811 is an apocalyptic number.

120843811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120843811 is a deficient number, since it is larger than the sum of its proper divisors (11156237).

120843811 is a wasteful number, since it uses less digits than its factorization.

120843811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14213.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 120843811 is about 10992.8982074792. The cubic root of 120843811 is about 494.3958360366.

The spelling of 120843811 in words is "one hundred twenty million, eight hundred forty-three thousand, eight hundred eleven".