1203420111 has 8 divisors (see below), whose sum is σ = 1626540720. Its totient is φ = 791289792.

The previous prime is 1203420107. The next prime is 1203420167. The reversal of 1203420111 is 1110243021.

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

It is not a de Polignac number, because 1203420111 - 2² = 1203420107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203420181) 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, 2747316 + ... + 2747753.

It is an arithmetic number, because the mean of its divisors is an integer number (203317590).

Almost surely, 2^1203420111 is an apocalyptic number.

1203420111 is a deficient number, since it is larger than the sum of its proper divisors (423120609).

1203420111 is an equidigital number, since it uses as much as digits as its factorization.

1203420111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495145.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1203420111 is about 34690.3460778355. The cubic root of 1203420111 is about 1063.6671699928.

Adding to 1203420111 its reverse (1110243021), we get a palindrome (2313663132).

The spelling of 1203420111 in words is "one billion, two hundred three million, four hundred twenty thousand, one hundred eleven".