203011312101 has 16 divisors (see below), whose sum is σ = 304177485696. Its totient is φ = 119498296896.

The previous prime is 203011312087. The next prime is 203011312111. The reversal of 203011312101 is 101213110302.

It is a happy number.

It is not a de Polignac number, because 203011312101 - 2⁶ = 203011312037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203011312111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113160370 + ... + 113162163.

It is an arithmetic number, because the mean of its divisors is an integer number (19011092856).

Almost surely, 2^203011312101 is an apocalyptic number.

It is an amenable number.

203011312101 is a deficient number, since it is larger than the sum of its proper divisors (101166173595).

203011312101 is a wasteful number, since it uses less digits than its factorization.

203011312101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226322572.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 203011312101 its reverse (101213110302), we get a palindrome (304224422403).

The spelling of 203011312101 in words is "two hundred three billion, eleven million, three hundred twelve thousand, one hundred one".