131023352515 has 8 divisors (see below), whose sum is σ = 171521479728. Its totient is φ = 95289710880.

The previous prime is 131023352513. The next prime is 131023352521. The reversal of 131023352515 is 515253320131.

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

It is not a de Polignac number, because 131023352515 - 2¹ = 131023352513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131023352513) 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, 1191121332 + ... + 1191121441.

It is an arithmetic number, because the mean of its divisors is an integer number (21440184966).

Almost surely, 2^131023352515 is an apocalyptic number.

131023352515 is a deficient number, since it is larger than the sum of its proper divisors (40498127213).

131023352515 is a wasteful number, since it uses less digits than its factorization.

131023352515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382242789.

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 131023352515 its reverse (515253320131), we get a palindrome (646276672646).

The spelling of 131023352515 in words is "one hundred thirty-one billion, twenty-three million, three hundred fifty-two thousand, five hundred fifteen".