133431105440512 has 72 divisors (see below), whose sum is σ = 290556674471952. Its totient is φ = 60649905254400.

The previous prime is 133431105440483. The next prime is 133431105440621. The reversal of 133431105440512 is 215044501134331.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420498298 + ... + 420815494.

It is an arithmetic number, because the mean of its divisors is an integer number (4035509367666).

Almost surely, 2^{133431105440512} is an apocalyptic number.

It is an amenable number.

133431105440512 is an abundant number, since it is smaller than the sum of its proper divisors (157125569031440).

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

133431105440512 is a wasteful number, since it uses less digits than its factorization.

133431105440512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466605 (or 466591 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 133431105440512 its reverse (215044501134331), we get a palindrome (348475606574843).

The spelling of 133431105440512 in words is "one hundred thirty-three trillion, four hundred thirty-one billion, one hundred five million, four hundred forty thousand, five hundred twelve".