131121430032 has 80 divisors (see below), whose sum is σ = 359618054400. Its totient is φ = 41025755136.

The previous prime is 131121430031. The next prime is 131121430051. The reversal of 131121430032 is 230034121131.

It is a junction number, because it is equal to n+sod(n) for n = 131121429990 and 131121430008.

It is not an unprimeable number, because it can be changed into a prime (131121430031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88969 + ... + 519767.

It is an arithmetic number, because the mean of its divisors is an integer number (4495225680).

Almost surely, 2^131121430032 is an apocalyptic number.

131121430032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131121430032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179809027200).

131121430032 is an abundant number, since it is smaller than the sum of its proper divisors (228496624368).

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

131121430032 is a wasteful number, since it uses less digits than its factorization.

131121430032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431200 (or 431194 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131121430032 its reverse (230034121131), we get a palindrome (361155551163).

The spelling of 131121430032 in words is "one hundred thirty-one billion, one hundred twenty-one million, four hundred thirty thousand, thirty-two".