201321003131 has 16 divisors (see below), whose sum is σ = 203803064928. Its totient is φ = 198857568000.

The previous prime is 201321003119. The next prime is 201321003259. The reversal of 201321003131 is 131300123102.

It is a cyclic number.

It is not a de Polignac number, because 201321003131 - 2²² = 201316808827 is a prime.

It is a super-2 number, since 2×201321003131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201321003931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19538681 + ... + 19548981.

It is an arithmetic number, because the mean of its divisors is an integer number (12737691558).

Almost surely, 2^201321003131 is an apocalyptic number.

201321003131 is a deficient number, since it is larger than the sum of its proper divisors (2482061797).

201321003131 is a wasteful number, since it uses less digits than its factorization.

201321003131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11182.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 201321003131 its reverse (131300123102), we get a palindrome (332621126233).

The spelling of 201321003131 in words is "two hundred one billion, three hundred twenty-one million, three thousand, one hundred thirty-one".