123121113343 has 8 divisors (see below), whose sum is σ = 129605756400. Its totient is φ = 116636928768.

The previous prime is 123121113317. The next prime is 123121113359. The reversal of 123121113343 is 343311121321.

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

It is a cyclic number.

It is not a de Polignac number, because 123121113343 - 2²⁵ = 123087558911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123121113043) 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, 529455 + ... + 725647.

It is an arithmetic number, because the mean of its divisors is an integer number (16200719550).

Almost surely, 2^123121113343 is an apocalyptic number.

123121113343 is a deficient number, since it is larger than the sum of its proper divisors (6484643057).

123121113343 is a wasteful number, since it uses less digits than its factorization.

123121113343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229241.

The product of its digits is 1296, while the sum is 25.

Adding to 123121113343 its reverse (343311121321), we get a palindrome (466432234664).

The spelling of 123121113343 in words is "one hundred twenty-three billion, one hundred twenty-one million, one hundred thirteen thousand, three hundred forty-three".