131231832750 has 256 divisors, whose sum is σ = 368328280320. Its totient is φ = 34577280000.

The previous prime is 131231832713. The next prime is 131231832761. The reversal of 131231832750 is 57238132131.

It is a happy number.

131231832750 is a `hidden beast` number, since 1 + 3 + 12 + 318 + 327 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 284667520 + ... + 284667980.

It is an arithmetic number, because the mean of its divisors is an integer number (1438782345).

Almost surely, 2^131231832750 is an apocalyptic number.

131231832750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131231832750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184164140160).

131231832750 is an abundant number, since it is smaller than the sum of its proper divisors (237096447570).

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

131231832750 is a wasteful number, since it uses less digits than its factorization.

131231832750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 131231832750 its reverse (57238132131), we get a palindrome (188469964881).

The spelling of 131231832750 in words is "one hundred thirty-one billion, two hundred thirty-one million, eight hundred thirty-two thousand, seven hundred fifty".