131121132315 has 32 divisors (see below), whose sum is σ = 210633302016. Its totient is φ = 69651991680.

The previous prime is 131121132293. The next prime is 131121132323. The reversal of 131121132315 is 513231121131.

It is not a de Polignac number, because 131121132315 - 2⁵ = 131121132283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3907549 + ... + 3940961.

It is an arithmetic number, because the mean of its divisors is an integer number (6582290688).

Almost surely, 2^131121132315 is an apocalyptic number.

131121132315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131121132315 is a deficient number, since it is larger than the sum of its proper divisors (79512169701).

131121132315 is a wasteful number, since it uses less digits than its factorization.

131121132315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34459.

The product of its digits is 540, while the sum is 24.

Adding to 131121132315 its reverse (513231121131), we get a palindrome (644352253446).

The spelling of 131121132315 in words is "one hundred thirty-one billion, one hundred twenty-one million, one hundred thirty-two thousand, three hundred fifteen".