131155434336 has 48 divisors (see below), whose sum is σ = 356154850800. Its totient is φ = 42210943488.

The previous prime is 131155434329. The next prime is 131155434337. The reversal of 131155434336 is 633434551131.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 131155434294 and 131155434303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131155434337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23552431 + ... + 23557998.

It is an arithmetic number, because the mean of its divisors is an integer number (7419892725).

Almost surely, 2^131155434336 is an apocalyptic number.

131155434336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131155434336 is an abundant number, since it is smaller than the sum of its proper divisors (224999416464).

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

131155434336 is a wasteful number, since it uses less digits than its factorization.

131155434336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47110471 (or 47110463 counting only the distinct ones).

The product of its digits is 194400, while the sum is 39.

Adding to 131155434336 its reverse (633434551131), we get a palindrome (764589985467).

The spelling of 131155434336 in words is "one hundred thirty-one billion, one hundred fifty-five million, four hundred thirty-four thousand, three hundred thirty-six".