201331323131 has 8 divisors (see below), whose sum is σ = 207501349440. Its totient is φ = 195239896128.

The previous prime is 201331323071. The next prime is 201331323139. The reversal of 201331323131 is 131323133102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201331323131 - 2¹⁴ = 201331306747 is a prime.

It is a super-2 number, since 2×201331323131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201331323097 and 201331323106.

It is not an unprimeable number, because it can be changed into a prime (201331323139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19644626 + ... + 19654871.

It is an arithmetic number, because the mean of its divisors is an integer number (25937668680).

Almost surely, 2^201331323131 is an apocalyptic number.

201331323131 is a deficient number, since it is larger than the sum of its proper divisors (6170026309).

201331323131 is a wasteful number, since it uses less digits than its factorization.

201331323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39299653.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 201331323131 its reverse (131323133102), we get a palindrome (332654456233).

The spelling of 201331323131 in words is "two hundred one billion, three hundred thirty-one million, three hundred twenty-three thousand, one hundred thirty-one".