203111312111130 has 32 divisors (see below), whose sum is σ = 487571331312000. Its totient is φ = 54151440757952.

The previous prime is 203111312111117. The next prime is 203111312111137. The reversal of 203111312111130 is 31111213111302.

It is a junction number, because it is equal to n+sod(n) for n = 203111312111097 and 203111312111106.

It is not an unprimeable number, because it can be changed into a prime (203111312111137) 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, 723345105 + ... + 723625844.

It is an arithmetic number, because the mean of its divisors is an integer number (15236604103500).

Almost surely, 2^{203111312111130} is an apocalyptic number.

203111312111130 is an abundant number, since it is smaller than the sum of its proper divisors (284460019200870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203111312111130 is a wasteful number, since it uses less digits than its factorization.

203111312111130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446975638.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 203111312111130 its reverse (31111213111302), we get a palindrome (234222525222432).

The spelling of 203111312111130 in words is "two hundred three trillion, one hundred eleven billion, three hundred twelve million, one hundred eleven thousand, one hundred thirty".