201326031415 has 4 divisors (see below), whose sum is σ = 241591237704. Its totient is φ = 161060825128.

The previous prime is 201326031391. The next prime is 201326031437. The reversal of 201326031415 is 514130623102.

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 201326031415 - 2¹⁷ = 201325900343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20132603137 + ... + 20132603146.

It is an arithmetic number, because the mean of its divisors is an integer number (60397809426).

Almost surely, 2^201326031415 is an apocalyptic number.

201326031415 is a deficient number, since it is larger than the sum of its proper divisors (40265206289).

201326031415 is an equidigital number, since it uses as much as digits as its factorization.

201326031415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40265206288.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 201326031415 its reverse (514130623102), we get a palindrome (715456654517).

The spelling of 201326031415 in words is "two hundred one billion, three hundred twenty-six million, thirty-one thousand, four hundred fifteen".