1123111201 has 8 divisors (see below), whose sum is σ = 1148212224. Its totient is φ = 1098060480.

The previous prime is 1123111193. The next prime is 1123111207. The reversal of 1123111201 is 1021113211.

It is a happy number.

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 1123111201 - 2³ = 1123111193 is a prime.

It is a super-2 number, since 2×1123111201² = 2522757539623324802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123111207) 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, 34521 + ... + 58633.

It is an arithmetic number, because the mean of its divisors is an integer number (143526528).

Almost surely, 2^1123111201 is an apocalyptic number.

It is an amenable number.

1123111201 is a deficient number, since it is larger than the sum of its proper divisors (25101023).

1123111201 is an equidigital number, since it uses as much as digits as its factorization.

1123111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25151.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1123111201 is about 33512.8512812622. The cubic root of 1123111201 is about 1039.4595321094.

Adding to 1123111201 its reverse (1021113211), we get a palindrome (2144224412).

The spelling of 1123111201 in words is "one billion, one hundred twenty-three million, one hundred eleven thousand, two hundred one".