133231020120 has 192 divisors, whose sum is σ = 472711299840. Its totient is φ = 32274720000.

The previous prime is 133231020119. The next prime is 133231020121. The reversal of 133231020120 is 21020132331.

133231020120 is a `hidden beast` number, since 1 + 332 + 310 + 2 + 0 + 1 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (133231020119) and next prime (133231020121).

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

It is a junction number, because it is equal to n+sod(n) for n = 133231020093 and 133231020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133231020121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5718495 + ... + 5741745.

It is an arithmetic number, because the mean of its divisors is an integer number (2462038020).

Almost surely, 2^133231020120 is an apocalyptic number.

133231020120 is a gapful number since it is divisible by the number (10) 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 133231020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236355649920).

133231020120 is an abundant number, since it is smaller than the sum of its proper divisors (339480279720).

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

133231020120 is a wasteful number, since it uses less digits than its factorization.

133231020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24726 (or 24719 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 133231020120 its reverse (21020132331), we get a palindrome (154251152451).

The spelling of 133231020120 in words is "one hundred thirty-three billion, two hundred thirty-one million, twenty thousand, one hundred twenty".