11312002234 has 8 divisors (see below), whose sum is σ = 18273234420. Its totient is φ = 5220924096.

The previous prime is 11312002201. The next prime is 11312002237. The reversal of 11312002234 is 43220021311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8029056025 + 3282946209 = 89605^2 + 57297^2 .

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

It is a super-2 number, since 2×11312002234² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11312002237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217538479 + ... + 217538530.

Almost surely, 2^11312002234 is an apocalyptic number.

11312002234 is a deficient number, since it is larger than the sum of its proper divisors (6961232186).

11312002234 is a wasteful number, since it uses less digits than its factorization.

11312002234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435077024.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11312002234 its reverse (43220021311), we get a palindrome (54532023545).

The spelling of 11312002234 in words is "eleven billion, three hundred twelve million, two thousand, two hundred thirty-four".