122665410503 has 4 divisors (see below), whose sum is σ = 129121484760. Its totient is φ = 116209336248.

The previous prime is 122665410487. The next prime is 122665410533. The reversal of 122665410503 is 305014566221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305014566221 = 31147 ⋅9792743.

It is a cyclic number.

It is not a de Polignac number, because 122665410503 - 2⁴ = 122665410487 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 (122665410533) 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, 3228037100 + ... + 3228037137.

It is an arithmetic number, because the mean of its divisors is an integer number (32280371190).

Almost surely, 2^122665410503 is an apocalyptic number.

122665410503 is a deficient number, since it is larger than the sum of its proper divisors (6456074257).

122665410503 is an equidigital number, since it uses as much as digits as its factorization.

122665410503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456074256.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 122665410503 its reverse (305014566221), we get a palindrome (427679976724).

The spelling of 122665410503 in words is "one hundred twenty-two billion, six hundred sixty-five million, four hundred ten thousand, five hundred three".