122403663 has 16 divisors (see below), whose sum is σ = 181941760. Its totient is φ = 81331128.

The previous prime is 122403661. The next prime is 122403683. The reversal of 122403663 is 366304221.

It is not a de Polignac number, because 122403663 - 2¹ = 122403661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122403661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906 + ... + 15672.

It is an arithmetic number, because the mean of its divisors is an integer number (11371360).

Almost surely, 2^122403663 is an apocalyptic number.

122403663 is a deficient number, since it is larger than the sum of its proper divisors (59538097).

122403663 is a wasteful number, since it uses less digits than its factorization.

122403663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083 (or 15077 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 122403663 is about 11063.6188925686. The cubic root of 122403663 is about 496.5139689939.

Adding to 122403663 its reverse (366304221), we get a palindrome (488707884).

The spelling of 122403663 in words is "one hundred twenty-two million, four hundred three thousand, six hundred sixty-three".