131144432032 has 48 divisors (see below), whose sum is σ = 272010039840. Its totient is φ = 62068370688.

The previous prime is 131144432011. The next prime is 131144432057. The reversal of 131144432032 is 230234441131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630838 + ... + 812554.

It is an arithmetic number, because the mean of its divisors is an integer number (5666875830).

Almost surely, 2^131144432032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131144432032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136005019920).

131144432032 is an abundant number, since it is smaller than the sum of its proper divisors (140865607808).

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

131144432032 is a wasteful number, since it uses less digits than its factorization.

131144432032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182933 (or 182925 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131144432032 its reverse (230234441131), we get a palindrome (361378873163).

Subtracting 131144432032 from its reverse (230234441131), we obtain a palindrome (99090009099).

The spelling of 131144432032 in words is "one hundred thirty-one billion, one hundred forty-four million, four hundred thirty-two thousand, thirty-two".