121623263 has 8 divisors (see below), whose sum is σ = 124666560. Its totient is φ = 118599040.

The previous prime is 121623259. The next prime is 121623277. The reversal of 121623263 is 362326121.

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 121623263 - 2² = 121623259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121623223) 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, 8603 + ... + 17811.

It is an arithmetic number, because the mean of its divisors is an integer number (15583320).

Almost surely, 2^121623263 is an apocalyptic number.

121623263 is a deficient number, since it is larger than the sum of its proper divisors (3043297).

121623263 is an equidigital number, since it uses as much as digits as its factorization.

121623263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9537.

The product of its digits is 2592, while the sum is 26.

The square root of 121623263 is about 11028.2937483547. The cubic root of 121623263 is about 495.4565226835.

Adding to 121623263 its reverse (362326121), we get a palindrome (483949384).

The spelling of 121623263 in words is "one hundred twenty-one million, six hundred twenty-three thousand, two hundred sixty-three".