121623601 has 8 divisors (see below), whose sum is σ = 132880608. Its totient is φ = 110400000.

The previous prime is 121623599. The next prime is 121623611. The reversal of 121623601 is 106326121.

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 121623601 - 2¹ = 121623599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121623611) 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, 400 + ... + 15601.

It is an arithmetic number, because the mean of its divisors is an integer number (16610076).

Almost surely, 2^121623601 is an apocalyptic number.

121623601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121623601 is a deficient number, since it is larger than the sum of its proper divisors (11257007).

121623601 is a wasteful number, since it uses less digits than its factorization.

121623601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16703.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 121623601 is about 11028.3090725641. The cubic root of 121623601 is about 495.4569816532.

Adding to 121623601 its reverse (106326121), we get a palindrome (227949722).

The spelling of 121623601 in words is "one hundred twenty-one million, six hundred twenty-three thousand, six hundred one".