123421201 has 8 divisors (see below), whose sum is σ = 126313344. Its totient is φ = 120540240.

The previous prime is 123421171. The next prime is 123421211. The reversal of 123421201 is 102124321.

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 123421201 - 2¹⁹ = 122896913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123421211) 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, 22071 + ... + 27091.

It is an arithmetic number, because the mean of its divisors is an integer number (15789168).

Almost surely, 2^123421201 is an apocalyptic number.

It is an amenable number.

123421201 is a deficient number, since it is larger than the sum of its proper divisors (2892143).

123421201 is an equidigital number, since it uses as much as digits as its factorization.

123421201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 123421201 is about 11109.5094851213. The cubic root of 123421201 is about 497.8860093502.

Adding to 123421201 its reverse (102124321), we get a palindrome (225545522).

The spelling of 123421201 in words is "one hundred twenty-three million, four hundred twenty-one thousand, two hundred one".