201953581703 has 4 divisors (see below), whose sum is σ = 202642843368. Its totient is φ = 201264320040.

The previous prime is 201953581673. The next prime is 201953581723. The reversal of 201953581703 is 307185359102.

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 201953581703 - 2⁸ = 201953581447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201953581723) 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, 344630393 + ... + 344630978.

It is an arithmetic number, because the mean of its divisors is an integer number (50660710842).

Almost surely, 2^201953581703 is an apocalyptic number.

201953581703 is a deficient number, since it is larger than the sum of its proper divisors (689261665).

201953581703 is an equidigital number, since it uses as much as digits as its factorization.

201953581703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689261664.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 201953581703 in words is "two hundred one billion, nine hundred fifty-three million, five hundred eighty-one thousand, seven hundred three".