122720303 has 4 divisors (see below), whose sum is σ = 122997768. Its totient is φ = 122442840.

The previous prime is 122720291. The next prime is 122720309. The reversal of 122720303 is 303027221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122720303 - 2⁶ = 122720239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122720309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138068 + ... + 138953.

It is an arithmetic number, because the mean of its divisors is an integer number (30749442).

Almost surely, 2^122720303 is an apocalyptic number.

122720303 is a deficient number, since it is larger than the sum of its proper divisors (277465).

122720303 is an equidigital number, since it uses as much as digits as its factorization.

122720303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277464.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 122720303 is about 11077.9196151624. The cubic root of 122720303 is about 496.9417361834.

Adding to 122720303 its reverse (303027221), we get a palindrome (425747524).

The spelling of 122720303 in words is "one hundred twenty-two million, seven hundred twenty thousand, three hundred three".