133431240342212 has 6 divisors (see below), whose sum is σ = 233504670598878. Its totient is φ = 66715620171104.

The previous prime is 133431240342203. The next prime is 133431240342251. The reversal of 133431240342212 is 212243042134331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 92009993889856 + 41421246452356 = 9592184^2 + 6435934^2 .

It is a super-2 number, since 2×133431240342212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16678905042773 + ... + 16678905042780.

It is an arithmetic number, because the mean of its divisors is an integer number (38917445099813).

Almost surely, 2^{133431240342212} is an apocalyptic number.

It is an amenable number.

133431240342212 is a deficient number, since it is larger than the sum of its proper divisors (100073430256666).

133431240342212 is a wasteful number, since it uses less digits than its factorization.

133431240342212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33357810085557 (or 33357810085555 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 133431240342212 its reverse (212243042134331), we get a palindrome (345674282476543).

The spelling of 133431240342212 in words is "one hundred thirty-three trillion, four hundred thirty-one billion, two hundred forty million, three hundred forty-two thousand, two hundred twelve".