1201134243 has 8 divisors (see below), whose sum is σ = 1603619856. Its totient is φ = 799702400.

The previous prime is 1201134241. The next prime is 1201134287. The reversal of 1201134243 is 3424311021.

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 1201134243 - 2¹ = 1201134241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201134241) 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, 260778 + ... + 265343.

It is an arithmetic number, because the mean of its divisors is an integer number (200452482).

Almost surely, 2^1201134243 is an apocalyptic number.

1201134243 is a deficient number, since it is larger than the sum of its proper divisors (402485613).

1201134243 is an equidigital number, since it uses as much as digits as its factorization.

1201134243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526885.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1201134243 is about 34657.3836721701. The cubic root of 1201134243 is about 1062.9932729292.

Adding to 1201134243 its reverse (3424311021), we get a palindrome (4625445264).

The spelling of 1201134243 in words is "one billion, two hundred one million, one hundred thirty-four thousand, two hundred forty-three".