201013231403 has 4 divisors (see below), whose sum is σ = 202344445008. Its totient is φ = 199682017800.

The previous prime is 201013231351. The next prime is 201013231409. The reversal of 201013231403 is 304132310102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201013231403 - 2¹² = 201013227307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201013231409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665606576 + ... + 665606877.

It is an arithmetic number, because the mean of its divisors is an integer number (50586111252).

Almost surely, 2^201013231403 is an apocalyptic number.

201013231403 is a deficient number, since it is larger than the sum of its proper divisors (1331213605).

201013231403 is a wasteful number, since it uses less digits than its factorization.

201013231403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331213604.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 201013231403 its reverse (304132310102), we get a palindrome (505145541505).

The spelling of 201013231403 in words is "two hundred one billion, thirteen million, two hundred thirty-one thousand, four hundred three".