11644002231 has 8 divisors (see below), whose sum is σ = 15944940144. Its totient is φ = 7552866240.

The previous prime is 11644002217. The next prime is 11644002277. The reversal of 11644002231 is 13220044611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11644002231 - 2¹⁷ = 11643871159 is a prime.

It is a super-2 number, since 2×11644002231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11644002131) 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, 52450350 + ... + 52450571.

It is an arithmetic number, because the mean of its divisors is an integer number (1993117518).

Almost surely, 2^11644002231 is an apocalyptic number.

11644002231 is a deficient number, since it is larger than the sum of its proper divisors (4300937913).

11644002231 is a wasteful number, since it uses less digits than its factorization.

11644002231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104900961.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11644002231 its reverse (13220044611), we get a palindrome (24864046842).

The spelling of 11644002231 in words is "eleven billion, six hundred forty-four million, two thousand, two hundred thirty-one".