131013302345 has 4 divisors (see below), whose sum is σ = 157215962820. Its totient is φ = 104810641872.

The previous prime is 131013302323. The next prime is 131013302389. The reversal of 131013302345 is 543203310131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543203310131 = 89 ⋅6103407979.

It can be written as a sum of positive squares in 2 ways, for example, as 102618356281 + 28394946064 = 320341^2 + 168508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131013302345 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13101330230 + ... + 13101330239.

It is an arithmetic number, because the mean of its divisors is an integer number (39303990705).

Almost surely, 2^131013302345 is an apocalyptic number.

It is an amenable number.

131013302345 is a deficient number, since it is larger than the sum of its proper divisors (26202660475).

131013302345 is an equidigital number, since it uses as much as digits as its factorization.

131013302345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26202660474.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 131013302345 its reverse (543203310131), we get a palindrome (674216612476).

The spelling of 131013302345 in words is "one hundred thirty-one billion, thirteen million, three hundred two thousand, three hundred forty-five".