201431320131 has 8 divisors (see below), whose sum is σ = 268674983440. Its totient is φ = 134237601792.

The previous prime is 201431320127. The next prime is 201431320147. The reversal of 201431320131 is 131023134102.

201431320131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 201431320131 - 2² = 201431320127 is a prime.

It is a super-2 number, since 2×201431320131² (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 = 201431320098 and 201431320107.

It is not an unprimeable number, because it can be changed into a prime (201431320171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12476830 + ... + 12492963.

It is an arithmetic number, because the mean of its divisors is an integer number (33584372930).

Almost surely, 2^201431320131 is an apocalyptic number.

201431320131 is a deficient number, since it is larger than the sum of its proper divisors (67243663309).

201431320131 is a wasteful number, since it uses less digits than its factorization.

201431320131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24972485.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 201431320131 its reverse (131023134102), we get a palindrome (332454454233).

The spelling of 201431320131 in words is "two hundred one billion, four hundred thirty-one million, three hundred twenty thousand, one hundred thirty-one".