203420401112122 has 32 divisors (see below), whose sum is σ = 329873217569280. Its totient is φ = 93752135208000.

The previous prime is 203420401112081. The next prime is 203420401112161. The reversal of 203420401112122 is 221211104024302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243525463 + ... + 244359349.

It is an arithmetic number, because the mean of its divisors is an integer number (10308538049040).

Almost surely, 2^{203420401112122} is an apocalyptic number.

203420401112122 is a deficient number, since it is larger than the sum of its proper divisors (126452816457158).

203420401112122 is a wasteful number, since it uses less digits than its factorization.

203420401112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007446.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 203420401112122 its reverse (221211104024302), we get a palindrome (424631505136424).

The spelling of 203420401112122 in words is "two hundred three trillion, four hundred twenty billion, four hundred one million, one hundred twelve thousand, one hundred twenty-two".