131233423992 has 192 divisors, whose sum is σ = 382376000160. Its totient is φ = 37375303680.

The previous prime is 131233423991. The next prime is 131233424011. The reversal of 131233423992 is 299324332131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131233423991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46256398 + ... + 46259234.

Almost surely, 2^131233423992 is an apocalyptic number.

131233423992 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 131233423992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191188000080).

131233423992 is an abundant number, since it is smaller than the sum of its proper divisors (251142576168).

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

131233423992 is a wasteful number, since it uses less digits than its factorization.

131233423992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822 (or 3807 counting only the distinct ones).

The product of its digits is 209952, while the sum is 42.

The spelling of 131233423992 in words is "one hundred thirty-one billion, two hundred thirty-three million, four hundred twenty-three thousand, nine hundred ninety-two".