131101341134520 has 128 divisors (see below), whose sum is σ = 393761767703040. Its totient is φ = 34919692945920.

The previous prime is 131101341134507. The next prime is 131101341134527. The reversal of 131101341134520 is 25431143101131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131101341134527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357301074 + ... + 357667806.

It is an arithmetic number, because the mean of its divisors is an integer number (3076263810180).

Almost surely, 2^{131101341134520} is an apocalyptic number.

131101341134520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131101341134520 is an abundant number, since it is smaller than the sum of its proper divisors (262660426568520).

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

131101341134520 is a wasteful number, since it uses less digits than its factorization.

131101341134520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370205 (or 370201 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 131101341134520 its reverse (25431143101131), we get a palindrome (156532484235651).

The spelling of 131101341134520 in words is "one hundred thirty-one trillion, one hundred one billion, three hundred forty-one million, one hundred thirty-four thousand, five hundred twenty".