203120101242305 has 16 divisors (see below), whose sum is σ = 262494080593920. Its totient is φ = 149996147429568.

The previous prime is 203120101242193. The next prime is 203120101242347. The reversal of 203120101242305 is 503242101021302.

It is a cyclic number.

It is not a de Polignac number, because 203120101242305 - 2³⁶ = 203051381765569 is a prime.

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, 46969136 + ... + 51111054.

It is an arithmetic number, because the mean of its divisors is an integer number (16405880037120).

Almost surely, 2^{203120101242305} is an apocalyptic number.

It is an amenable number.

203120101242305 is a deficient number, since it is larger than the sum of its proper divisors (59373979351615).

203120101242305 is a wasteful number, since it uses less digits than its factorization.

203120101242305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4896400.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 203120101242305 its reverse (503242101021302), we get a palindrome (706362202263607).

The spelling of 203120101242305 in words is "two hundred three trillion, one hundred twenty billion, one hundred one million, two hundred forty-two thousand, three hundred five".