122151305203 has 4 divisors (see below), whose sum is σ = 123974459080. Its totient is φ = 120328151328.

The previous prime is 122151305183. The next prime is 122151305219. The reversal of 122151305203 is 302503151221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122151305203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122151305233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 911576838 + ... + 911576971.

It is an arithmetic number, because the mean of its divisors is an integer number (30993614770).

Almost surely, 2^122151305203 is an apocalyptic number.

122151305203 is a deficient number, since it is larger than the sum of its proper divisors (1823153877).

122151305203 is an equidigital number, since it uses as much as digits as its factorization.

122151305203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823153876.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 122151305203 its reverse (302503151221), we get a palindrome (424654456424).

The spelling of 122151305203 in words is "one hundred twenty-two billion, one hundred fifty-one million, three hundred five thousand, two hundred three".