1201112023 has 4 divisors (see below), whose sum is σ = 1223774568. Its totient is φ = 1178449480.

The previous prime is 1201111993. The next prime is 1201112027. The reversal of 1201112023 is 3202111021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201112023 - 2⁹ = 1201111511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201111994 and 1201112012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201112027) 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, 11331193 + ... + 11331298.

It is an arithmetic number, because the mean of its divisors is an integer number (305943642).

Almost surely, 2^1201112023 is an apocalyptic number.

1201112023 is a deficient number, since it is larger than the sum of its proper divisors (22662545).

1201112023 is an equidigital number, since it uses as much as digits as its factorization.

1201112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22662544.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1201112023 is about 34657.0631040774. The cubic root of 1201112023 is about 1062.9867180537.

Adding to 1201112023 its reverse (3202111021), we get a palindrome (4403223044).

The spelling of 1201112023 in words is "one billion, two hundred one million, one hundred twelve thousand, twenty-three".