201061440403 has 4 divisors (see below), whose sum is σ = 202071799600. Its totient is φ = 200051081208.

The previous prime is 201061440397. The next prime is 201061440413. The reversal of 201061440403 is 304044160102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201061440403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201061440413) 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, 505179300 + ... + 505179697.

It is an arithmetic number, because the mean of its divisors is an integer number (50517949900).

Almost surely, 2^201061440403 is an apocalyptic number.

201061440403 is a deficient number, since it is larger than the sum of its proper divisors (1010359197).

201061440403 is a wasteful number, since it uses less digits than its factorization.

201061440403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010359196.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 201061440403 in words is "two hundred one billion, sixty-one million, four hundred forty thousand, four hundred three".