1201280233 has 4 divisors (see below), whose sum is σ = 1201354308. Its totient is φ = 1201206160.

The previous prime is 1201280219. The next prime is 1201280237. The reversal of 1201280233 is 3320821021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12616704 + 1188663529 = 3552^2 + 34477^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201280233 - 2²⁹ = 664409321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201280237) 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, 1066 + ... + 49027.

It is an arithmetic number, because the mean of its divisors is an integer number (300338577).

Almost surely, 2^1201280233 is an apocalyptic number.

It is an amenable number.

1201280233 is a deficient number, since it is larger than the sum of its proper divisors (74075).

1201280233 is an equidigital number, since it uses as much as digits as its factorization.

1201280233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74074.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1201280233 is about 34659.4897971681. The cubic root of 1201280233 is about 1063.0363378078.

The spelling of 1201280233 in words is "one billion, two hundred one million, two hundred eighty thousand, two hundred thirty-three".