203130101011 has 4 divisors (see below), whose sum is σ = 203131392400. Its totient is φ = 203128809624.

The previous prime is 203130100997. The next prime is 203130101023. The reversal of 203130101011 is 110101031302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110101031302 = 2 ⋅55050515651.

It is a cyclic number.

It is not a de Polignac number, because 203130101011 - 2⁷ = 203130100883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203130100982 and 203130101000.

It is not an unprimeable number, because it can be changed into a prime (203130101711) 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, 370716 + ... + 737353.

It is an arithmetic number, because the mean of its divisors is an integer number (50782848100).

Almost surely, 2^203130101011 is an apocalyptic number.

203130101011 is a deficient number, since it is larger than the sum of its proper divisors (1291389).

203130101011 is a wasteful number, since it uses less digits than its factorization.

203130101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291388.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 203130101011 its reverse (110101031302), we get a palindrome (313231132313).

The spelling of 203130101011 in words is "two hundred three billion, one hundred thirty million, one hundred one thousand, eleven".