131131233135 has 36 divisors (see below), whose sum is σ = 264403388808. Its totient is φ = 59945705568.

The previous prime is 131131233109. The next prime is 131131233161. The reversal of 131131233135 is 531332131131.

It is a happy number.

131131233135 is a `hidden beast` number, since 1 + 3 + 11 + 312 + 331 + 3 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (131131233109) and next prime (131131233161).

It is not a de Polignac number, because 131131233135 - 2¹² = 131131229039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131131233099 and 131131233108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29732769 + ... + 29737178.

It is an arithmetic number, because the mean of its divisors is an integer number (7344538578).

Almost surely, 2^131131233135 is an apocalyptic number.

131131233135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131131233135 is an abundant number, since it is smaller than the sum of its proper divisors (133272155673).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131131233135 is a wasteful number, since it uses less digits than its factorization.

131131233135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59469972 (or 59469962 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

Adding to 131131233135 its reverse (531332131131), we get a palindrome (662463364266).

The spelling of 131131233135 in words is "one hundred thirty-one billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred thirty-five".