131133311011 has 4 divisors (see below), whose sum is σ = 131857804624. Its totient is φ = 130408817400.

The previous prime is 131133310981. The next prime is 131133311051. The reversal of 131133311011 is 110113331131.

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 131133311011 - 2²⁷ = 130999093283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131133311011.

It is not an unprimeable number, because it can be changed into a prime (131133311051) 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, 362246535 + ... + 362246896.

It is an arithmetic number, because the mean of its divisors is an integer number (32964451156).

Almost surely, 2^131133311011 is an apocalyptic number.

131133311011 is a deficient number, since it is larger than the sum of its proper divisors (724493613).

131133311011 is an equidigital number, since it uses as much as digits as its factorization.

131133311011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724493612.

The product of its (nonzero) digits is 81, while the sum is 19.

Adding to 131133311011 its reverse (110113331131), we get a palindrome (241246642142).

The spelling of 131133311011 in words is "one hundred thirty-one billion, one hundred thirty-three million, three hundred eleven thousand, eleven".