123345033421 has 8 divisors (see below), whose sum is σ = 124043572800. Its totient is φ = 122646599520.

The previous prime is 123345033419. The next prime is 123345033439. The reversal of 123345033421 is 124330543321.

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 not a de Polignac number, because 123345033421 - 2¹ = 123345033419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123345033521) 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, 4466785 + ... + 4494313.

It is an arithmetic number, because the mean of its divisors is an integer number (15505446600).

Almost surely, 2^123345033421 is an apocalyptic number.

It is an amenable number.

123345033421 is a deficient number, since it is larger than the sum of its proper divisors (698539379).

123345033421 is a wasteful number, since it uses less digits than its factorization.

123345033421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52739.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 123345033421 its reverse (124330543321), we get a palindrome (247675576742).

The spelling of 123345033421 in words is "one hundred twenty-three billion, three hundred forty-five million, thirty-three thousand, four hundred twenty-one".