121343104423 has 8 divisors (see below), whose sum is σ = 124177849488. Its totient is φ = 118508941824.

The previous prime is 121343104403. The next prime is 121343104453. The reversal of 121343104423 is 324401343121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121343104423 is a prime.

It is a super-2 number, since 2×121343104423² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121343104391 and 121343104400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121343104403) 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, 291015 + ... + 572167.

It is an arithmetic number, because the mean of its divisors is an integer number (15522231186).

Almost surely, 2^121343104423 is an apocalyptic number.

121343104423 is a deficient number, since it is larger than the sum of its proper divisors (2834745065).

121343104423 is a wasteful number, since it uses less digits than its factorization.

121343104423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291233.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 121343104423 its reverse (324401343121), we get a palindrome (445744447544).

The spelling of 121343104423 in words is "one hundred twenty-one billion, three hundred forty-three million, one hundred four thousand, four hundred twenty-three".