131000302231 has 16 divisors (see below), whose sum is σ = 145371893760. Its totient is φ = 117546755040.

The previous prime is 131000302207. The next prime is 131000302247. The reversal of 131000302231 is 132203000131.

It is a cyclic number.

It is not a de Polignac number, because 131000302231 - 2¹¹ = 131000300183 is a prime.

It is a super-2 number, since 2×131000302231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000302201) 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, 2338396 + ... + 2393761.

It is an arithmetic number, because the mean of its divisors is an integer number (9085743360).

Almost surely, 2^131000302231 is an apocalyptic number.

131000302231 is a deficient number, since it is larger than the sum of its proper divisors (14371591529).

131000302231 is a wasteful number, since it uses less digits than its factorization.

131000302231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732254.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 131000302231 its reverse (132203000131), we get a palindrome (263203302362).

The spelling of 131000302231 in words is "one hundred thirty-one billion, three hundred two thousand, two hundred thirty-one".