133313321012 has 6 divisors (see below), whose sum is σ = 233298311778. Its totient is φ = 66656660504.

The previous prime is 133313320997. The next prime is 133313321023. The reversal of 133313321012 is 210123313331.

It can be written as a sum of positive squares in only one way, i.e., 89984400676 + 43328920336 = 299974^2 + 208156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16664165123 + ... + 16664165130.

It is an arithmetic number, because the mean of its divisors is an integer number (38883051963).

Almost surely, 2^133313321012 is an apocalyptic number.

It is an amenable number.

133313321012 is a deficient number, since it is larger than the sum of its proper divisors (99984990766).

133313321012 is a wasteful number, since it uses less digits than its factorization.

133313321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33328330257 (or 33328330255 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133313321012 its reverse (210123313331), we get a palindrome (343436634343).

The spelling of 133313321012 in words is "one hundred thirty-three billion, three hundred thirteen million, three hundred twenty-one thousand, twelve".