131011172115 has 8 divisors (see below), whose sum is σ = 209617875408. Its totient is φ = 69872625120.

The previous prime is 131011172101. The next prime is 131011172141. The reversal of 131011172115 is 511271110131.

It is a happy number.

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

It is not a de Polignac number, because 131011172115 - 2⁴ = 131011172099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4367039056 + ... + 4367039085.

It is an arithmetic number, because the mean of its divisors is an integer number (26202234426).

Almost surely, 2^131011172115 is an apocalyptic number.

131011172115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131011172115 is a deficient number, since it is larger than the sum of its proper divisors (78606703293).

131011172115 is an equidigital number, since it uses as much as digits as its factorization.

131011172115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8734078149.

The product of its (nonzero) digits is 210, while the sum is 24.

Adding to 131011172115 its reverse (511271110131), we get a palindrome (642282282246).

The spelling of 131011172115 in words is "one hundred thirty-one billion, eleven million, one hundred seventy-two thousand, one hundred fifteen".