131011010291 has 4 divisors (see below), whose sum is σ = 149726868912. Its totient is φ = 112295151672.

The previous prime is 131011010243. The next prime is 131011010293. The reversal of 131011010291 is 192010110131.

It is a happy number.

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 131011010291 - 2³⁰ = 129937268467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131011010293) 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, 9357929300 + ... + 9357929313.

It is an arithmetic number, because the mean of its divisors is an integer number (37431717228).

Almost surely, 2^131011010291 is an apocalyptic number.

131011010291 is a deficient number, since it is larger than the sum of its proper divisors (18715858621).

131011010291 is an equidigital number, since it uses as much as digits as its factorization.

131011010291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18715858620.

The product of its (nonzero) digits is 54, while the sum is 20.

The spelling of 131011010291 in words is "one hundred thirty-one billion, eleven million, ten thousand, two hundred ninety-one".