724121121401 has 8 divisors (see below), whose sum is σ = 729717246720. Its totient is φ = 718544394288.

The previous prime is 724121121379. The next prime is 724121121407. The reversal of 724121121401 is 104121121427.

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 724121121401 - 2⁶ = 724121121337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724121121407) 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, 4774601 + ... + 4923926.

It is an arithmetic number, because the mean of its divisors is an integer number (91214655840).

Almost surely, 2^724121121401 is an apocalyptic number.

It is an amenable number.

724121121401 is a deficient number, since it is larger than the sum of its proper divisors (5596125319).

724121121401 is a wasteful number, since it uses less digits than its factorization.

724121121401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9699103.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 724121121401 its sum of digits (26), we get a palindrome (724121121427).

Adding to 724121121401 its reverse (104121121427), we get a palindrome (828242242828).

The spelling of 724121121401 in words is "seven hundred twenty-four billion, one hundred twenty-one million, one hundred twenty-one thousand, four hundred one".