131033111111 has 8 divisors (see below), whose sum is σ = 149963348640. Its totient is φ = 112155679008.

The previous prime is 131033111087. The next prime is 131033111113. The reversal of 131033111111 is 111111330131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131033111111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131033111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131033111113) 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, 13196036 + ... + 13205961.

It is an arithmetic number, because the mean of its divisors is an integer number (18745418580).

Almost surely, 2^131033111111 is an apocalyptic number.

131033111111 is a deficient number, since it is larger than the sum of its proper divisors (18930237529).

131033111111 is an equidigital number, since it uses as much as digits as its factorization.

131033111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26402713.

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 131033111111 its reverse (111111330131), we get a palindrome (242144441242).

The spelling of 131033111111 in words is "one hundred thirty-one billion, thirty-three million, one hundred eleven thousand, one hundred eleven".