122100002403 has 4 divisors (see below), whose sum is σ = 162800003208. Its totient is φ = 81400001600.

The previous prime is 122100002393. The next prime is 122100002407. The reversal of 122100002403 is 304200001221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304200001221 = 3 ⋅101400000407.

It is a cyclic number.

It is not a de Polignac number, because 122100002403 - 2¹⁰ = 122100001379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122100002407) 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, 20350000398 + ... + 20350000403.

It is an arithmetic number, because the mean of its divisors is an integer number (40700000802).

Almost surely, 2^122100002403 is an apocalyptic number.

122100002403 is a deficient number, since it is larger than the sum of its proper divisors (40700000805).

122100002403 is an equidigital number, since it uses as much as digits as its factorization.

122100002403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40700000804.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 122100002403 its reverse (304200001221), we get a palindrome (426300003624).

The spelling of 122100002403 in words is "one hundred twenty-two billion, one hundred million, two thousand, four hundred three".