1111200231 has 4 divisors (see below), whose sum is σ = 1481600312. Its totient is φ = 740800152.

The previous prime is 1111200227. The next prime is 1111200241. The reversal of 1111200231 is 1320021111.

1111200231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1111200231 - 2² = 1111200227 is a prime.

It is a super-2 number, since 2×1111200231² = 2469531906748906722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111200241) 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, 185200036 + ... + 185200041.

It is an arithmetic number, because the mean of its divisors is an integer number (370400078).

Almost surely, 2^1111200231 is an apocalyptic number.

1111200231 is a deficient number, since it is larger than the sum of its proper divisors (370400081).

1111200231 is an equidigital number, since it uses as much as digits as its factorization.

1111200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370400080.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1111200231 is about 33334.6701048623. The cubic root of 1111200231 is about 1035.7718595325.

Adding to 1111200231 its reverse (1320021111), we get a palindrome (2431221342).

The spelling of 1111200231 in words is "one billion, one hundred eleven million, two hundred thousand, two hundred thirty-one".