12331440334 has 4 divisors (see below), whose sum is σ = 18497160504. Its totient is φ = 6165720166.

The previous prime is 12331440293. The next prime is 12331440343. The reversal of 12331440334 is 43304413321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43304413321 = 13 ⋅3331108717.

It is a super-2 number, since 2×12331440334² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3082860082 + ... + 3082860085.

It is an arithmetic number, because the mean of its divisors is an integer number (4624290126).

Almost surely, 2^12331440334 is an apocalyptic number.

12331440334 is a deficient number, since it is larger than the sum of its proper divisors (6165720170).

12331440334 is an equidigital number, since it uses as much as digits as its factorization.

12331440334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6165720169.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 12331440334 its reverse (43304413321), we get a palindrome (55635853655).

The spelling of 12331440334 in words is "twelve billion, three hundred thirty-one million, four hundred forty thousand, three hundred thirty-four".