133121020230312 has 16 divisors (see below), whose sum is σ = 332802550575840. Its totient is φ = 44373673410096.

The previous prime is 133121020230311. The next prime is 133121020230427. The reversal of 133121020230312 is 213032020121331.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5546709176263 = 133121020230312 / (1 + 3 + 3 + 1 + 2 + 1 + 0 + 2 + 0 + 2 + 3 + 0 + 3 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (133121020230311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2773354588108 + ... + 2773354588155.

It is an arithmetic number, because the mean of its divisors is an integer number (20800159410990).

Almost surely, 2^{133121020230312} is an apocalyptic number.

133121020230312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133121020230312 is an abundant number, since it is smaller than the sum of its proper divisors (199681530345528).

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

133121020230312 is a wasteful number, since it uses less digits than its factorization.

133121020230312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5546709176272 (or 5546709176268 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 133121020230312 its reverse (213032020121331), we get a palindrome (346153040351643).

The spelling of 133121020230312 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, twenty million, two hundred thirty thousand, three hundred twelve".