123311440334 has 8 divisors (see below), whose sum is σ = 184975346088. Its totient is φ = 61652991640.

The previous prime is 123311440309. The next prime is 123311440337. The reversal of 123311440334 is 433044113321.

It is a happy number.

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

It is a super-2 number, since 2×123311440334² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123311440297 and 123311440306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123311440337) 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, 1307297 + ... + 1398444.

It is an arithmetic number, because the mean of its divisors is an integer number (23121918261).

Almost surely, 2^123311440334 is an apocalyptic number.

123311440334 is a deficient number, since it is larger than the sum of its proper divisors (61663905754).

123311440334 is a wasteful number, since it uses less digits than its factorization.

123311440334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728530.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 123311440334 its reverse (433044113321), we get a palindrome (556355553655).

The spelling of 123311440334 in words is "one hundred twenty-three billion, three hundred eleven million, four hundred forty thousand, three hundred thirty-four".