131125404115 has 4 divisors (see below), whose sum is σ = 157350484944. Its totient is φ = 104900323288.

The previous prime is 131125404107. The next prime is 131125404161. The reversal of 131125404115 is 511404521131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131125404115 - 2³ = 131125404107 is a prime.

It is a Duffinian number.

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, 13112540407 + ... + 13112540416.

It is an arithmetic number, because the mean of its divisors is an integer number (39337621236).

Almost surely, 2^131125404115 is an apocalyptic number.

131125404115 is a deficient number, since it is larger than the sum of its proper divisors (26225080829).

131125404115 is an equidigital number, since it uses as much as digits as its factorization.

131125404115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26225080828.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 131125404115 its reverse (511404521131), we get a palindrome (642529925246).

The spelling of 131125404115 in words is "one hundred thirty-one billion, one hundred twenty-five million, four hundred four thousand, one hundred fifteen".