131101045513 has 4 divisors (see below), whose sum is σ = 138001100560. Its totient is φ = 124200990468.

The previous prime is 131101045477. The next prime is 131101045547. The reversal of 131101045513 is 315540101131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131101045513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131101046513) 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, 3450027495 + ... + 3450027532.

It is an arithmetic number, because the mean of its divisors is an integer number (34500275140).

Almost surely, 2^131101045513 is an apocalyptic number.

It is an amenable number.

131101045513 is a deficient number, since it is larger than the sum of its proper divisors (6900055047).

131101045513 is an equidigital number, since it uses as much as digits as its factorization.

131101045513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900055046.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 131101045513 its reverse (315540101131), we get a palindrome (446641146644).

The spelling of 131101045513 in words is "one hundred thirty-one billion, one hundred one million, forty-five thousand, five hundred thirteen".