203140231113 has 4 divisors (see below), whose sum is σ = 270853641488. Its totient is φ = 135426820740.

The previous prime is 203140231079. The next prime is 203140231141. The reversal of 203140231113 is 311132041302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 203140231113 - 2¹⁴ = 203140214729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203140231113.

It is not an unprimeable number, because it can be changed into a prime (203140231163) 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, 33856705183 + ... + 33856705188.

It is an arithmetic number, because the mean of its divisors is an integer number (67713410372).

Almost surely, 2^203140231113 is an apocalyptic number.

It is an amenable number.

203140231113 is a deficient number, since it is larger than the sum of its proper divisors (67713410375).

203140231113 is an equidigital number, since it uses as much as digits as its factorization.

203140231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67713410374.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 203140231113 its reverse (311132041302), we get a palindrome (514272272415).

The spelling of 203140231113 in words is "two hundred three billion, one hundred forty million, two hundred thirty-one thousand, one hundred thirteen".