4001213233 has 4 divisors (see below), whose sum is σ = 4015452708. Its totient is φ = 3986973760.

The previous prime is 4001213231. The next prime is 4001213261. The reversal of 4001213233 is 3323121004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2022031089 + 1979182144 = 44967^2 + 44488^2 .

It is a cyclic number.

It is not a de Polignac number, because 4001213233 - 2¹ = 4001213231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4001213233.

It is not an unprimeable number, because it can be changed into a prime (4001213231) 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, 7119316 + ... + 7119877.

It is an arithmetic number, because the mean of its divisors is an integer number (1003863177).

Almost surely, 2^4001213233 is an apocalyptic number.

It is an amenable number.

4001213233 is a deficient number, since it is larger than the sum of its proper divisors (14239475).

4001213233 is a wasteful number, since it uses less digits than its factorization.

4001213233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14239474.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 4001213233 is about 63255.1439252177. The cubic root of 4001213233 is about 1587.5615263566.

Adding to 4001213233 its reverse (3323121004), we get a palindrome (7324334237).

The spelling of 4001213233 in words is "four billion, one million, two hundred thirteen thousand, two hundred thirty-three".