121422403 has 8 divisors (see below), whose sum is σ = 122962400. Its totient is φ = 119890368.

The previous prime is 121422401. The next prime is 121422409. The reversal of 121422403 is 304224121.

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 121422403 - 2¹ = 121422401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121422401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32338 + ... + 35896.

It is an arithmetic number, because the mean of its divisors is an integer number (15370300).

Almost surely, 2^121422403 is an apocalyptic number.

121422403 is a deficient number, since it is larger than the sum of its proper divisors (1539997).

121422403 is a wasteful number, since it uses less digits than its factorization.

121422403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 121422403 is about 11019.1834089464. The cubic root of 121422403 is about 495.1836246948.

Adding to 121422403 its reverse (304224121), we get a palindrome (425646524).

The spelling of 121422403 in words is "one hundred twenty-one million, four hundred twenty-two thousand, four hundred three".