1201331033 has 16 divisors (see below), whose sum is σ = 1413350400. Its totient is φ = 999701136.

The previous prime is 1201330987. The next prime is 1201331057. The reversal of 1201331033 is 3301331021.

It is not a de Polignac number, because 1201331033 - 2⁶ = 1201330969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201331063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38318 + ... + 62216.

It is an arithmetic number, because the mean of its divisors is an integer number (88334400).

Almost surely, 2^1201331033 is an apocalyptic number.

It is an amenable number.

1201331033 is a deficient number, since it is larger than the sum of its proper divisors (212019367).

1201331033 is a wasteful number, since it uses less digits than its factorization.

1201331033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24116.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1201331033 is about 34660.2226334454. Note that the first 3 decimals coincide. The cubic root of 1201331033 is about 1063.0513222340.

Adding to 1201331033 its reverse (3301331021), we get a palindrome (4502662054).

The spelling of 1201331033 in words is "one billion, two hundred one million, three hundred thirty-one thousand, thirty-three".