201212330131 has 4 divisors (see below), whose sum is σ = 201215431264. Its totient is φ = 201209229000.

The previous prime is 201212330113. The next prime is 201212330147. The reversal of 201212330131 is 131033212102.

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 201212330131 - 2¹⁷ = 201212199059 is a prime.

It is a super-2 number, since 2×201212330131² (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 = 201212330099 and 201212330108.

It is not an unprimeable number, because it can be changed into a prime (201212339131) 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, 1451115 + ... + 1583716.

It is an arithmetic number, because the mean of its divisors is an integer number (50303857816).

Almost surely, 2^201212330131 is an apocalyptic number.

201212330131 is a deficient number, since it is larger than the sum of its proper divisors (3101133).

201212330131 is an equidigital number, since it uses as much as digits as its factorization.

201212330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101132.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201212330131 its reverse (131033212102), we get a palindrome (332245542233).

The spelling of 201212330131 in words is "two hundred one billion, two hundred twelve million, three hundred thirty thousand, one hundred thirty-one".