1121201063 has 4 divisors (see below), whose sum is σ = 1127682168. Its totient is φ = 1114719960.

The previous prime is 1121201057. The next prime is 1121201089. The reversal of 1121201063 is 3601021211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3601021211 = 5569 ⋅646619.

It is a cyclic number.

It is not a de Polignac number, because 1121201063 - 2⁸ = 1121200807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121201023) 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, 3240293 + ... + 3240638.

It is an arithmetic number, because the mean of its divisors is an integer number (281920542).

Almost surely, 2^1121201063 is an apocalyptic number.

1121201063 is a deficient number, since it is larger than the sum of its proper divisors (6481105).

1121201063 is an equidigital number, since it uses as much as digits as its factorization.

1121201063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6481104.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1121201063 is about 33484.3405639114. The cubic root of 1121201063 is about 1038.8699087376.

Adding to 1121201063 its reverse (3601021211), we get a palindrome (4722222274).

The spelling of 1121201063 in words is "one billion, one hundred twenty-one million, two hundred one thousand, sixty-three".