131601011 has 12 divisors (see below), whose sum is σ = 139911480. Its totient is φ = 123439680.

The previous prime is 131600999. The next prime is 131601013. The reversal of 131601011 is 110106131.

It is not a de Polignac number, because 131601011 - 2⁶ = 131600947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131601013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468191 + ... + 468471.

It is an arithmetic number, because the mean of its divisors is an integer number (11659290).

Almost surely, 2^131601011 is an apocalyptic number.

131601011 is a deficient number, since it is larger than the sum of its proper divisors (8310469).

131601011 is an equidigital number, since it uses as much as digits as its factorization.

131601011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 131601011 is about 11471.7483846186. The cubic root of 131601011 is about 508.6508117175.

Adding to 131601011 its reverse (110106131), we get a palindrome (241707142).

The spelling of 131601011 in words is "one hundred thirty-one million, six hundred one thousand, eleven".