201031242131 has 8 divisors (see below), whose sum is σ = 203689973760. Its totient is φ = 198389831688.

The previous prime is 201031242127. The next prime is 201031242157. The reversal of 201031242131 is 131242130102.

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

It is not a de Polignac number, because 201031242131 - 2² = 201031242127 is a prime.

It is a super-2 number, since 2×201031242131² (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 (201031242161) 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, 4306931 + ... + 4353356.

It is an arithmetic number, because the mean of its divisors is an integer number (25461246720).

Almost surely, 2^201031242131 is an apocalyptic number.

201031242131 is a deficient number, since it is larger than the sum of its proper divisors (2658731629).

201031242131 is a wasteful number, since it uses less digits than its factorization.

201031242131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8660593.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201031242131 its reverse (131242130102), we get a palindrome (332273372233).

The spelling of 201031242131 in words is "two hundred one billion, thirty-one million, two hundred forty-two thousand, one hundred thirty-one".