131101343111051 has 4 divisors (see below), whose sum is σ = 131370545048112. Its totient is φ = 130832141173992.

The previous prime is 131101343110961. The next prime is 131101343111117. The reversal of 131101343111051 is 150111343101131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131101343111051 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 131101343111051.

It is not an unprimeable number, because it can be changed into a prime (131101343111351) 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, 134600967800 + ... + 134600968773.

It is an arithmetic number, because the mean of its divisors is an integer number (32842636262028).

Almost surely, 2^{131101343111051} is an apocalyptic number.

131101343111051 is a deficient number, since it is larger than the sum of its proper divisors (269201937061).

131101343111051 is an equidigital number, since it uses as much as digits as its factorization.

131101343111051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269201937060.

The product of its (nonzero) digits is 540, while the sum is 26.

Adding to 131101343111051 its reverse (150111343101131), we get a palindrome (281212686212182).

The spelling of 131101343111051 in words is "one hundred thirty-one trillion, one hundred one billion, three hundred forty-three million, one hundred eleven thousand, fifty-one".