131423165115 has 16 divisors (see below), whose sum is σ = 229393161216. Its totient is φ = 63720322400.

The previous prime is 131423165087. The next prime is 131423165119. The reversal of 131423165115 is 511561324131.

It is a happy number.

It is not a de Polignac number, because 131423165115 - 2¹⁰ = 131423164091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (131423165119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398251851 + ... + 398252180.

It is an arithmetic number, because the mean of its divisors is an integer number (14337072576).

Almost surely, 2^131423165115 is an apocalyptic number.

131423165115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131423165115 is a deficient number, since it is larger than the sum of its proper divisors (97969996101).

131423165115 is a wasteful number, since it uses less digits than its factorization.

131423165115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796504050.

The product of its digits is 10800, while the sum is 33.

Adding to 131423165115 its reverse (511561324131), we get a palindrome (642984489246).

The spelling of 131423165115 in words is "one hundred thirty-one billion, four hundred twenty-three million, one hundred sixty-five thousand, one hundred fifteen".