131212001232 has 240 divisors, whose sum is σ = 401692345600. Its totient is φ = 39739714560.

The previous prime is 131212001203. The next prime is 131212001273. The reversal of 131212001232 is 232100212131.

131212001232 is a `hidden beast` number, since 1 + 312 + 120 + 0 + 1 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56048382 + ... + 56050722.

Almost surely, 2^131212001232 is an apocalyptic number.

131212001232 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 131212001232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200846172800).

131212001232 is an abundant number, since it is smaller than the sum of its proper divisors (270480344368).

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

131212001232 is a wasteful number, since it uses less digits than its factorization.

131212001232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826 (or 2817 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 131212001232 its reverse (232100212131), we get a palindrome (363312213363).

The spelling of 131212001232 in words is "one hundred thirty-one billion, two hundred twelve million, one thousand, two hundred thirty-two".