121323401 has 4 divisors (see below), whose sum is σ = 121360512. Its totient is φ = 121286292.

The previous prime is 121323383. The next prime is 121323409. The reversal of 121323401 is 104323121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121323401 - 2⁶ = 121323337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121323401.

It is not an unprimeable number, because it can be changed into a prime (121323409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13121 + ... + 20366.

It is an arithmetic number, because the mean of its divisors is an integer number (30340128).

Almost surely, 2^121323401 is an apocalyptic number.

It is an amenable number.

121323401 is a deficient number, since it is larger than the sum of its proper divisors (37111).

121323401 is an equidigital number, since it uses as much as digits as its factorization.

121323401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37110.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 121323401 is about 11014.6902362254. The cubic root of 121323401 is about 495.0490051133.

Adding to 121323401 its reverse (104323121), we get a palindrome (225646522).

The spelling of 121323401 in words is "one hundred twenty-one million, three hundred twenty-three thousand, four hundred one".