451306331212 has 24 divisors (see below), whose sum is σ = 861989682960. Its totient is φ = 205042844160.

The previous prime is 451306331167. The next prime is 451306331237. The reversal of 451306331212 is 212133603154.

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, 2315193 + ... + 2502544.

It is an arithmetic number, because the mean of its divisors is an integer number (35916236790).

Almost surely, 2^451306331212 is an apocalyptic number.

It is an amenable number.

451306331212 is a deficient number, since it is larger than the sum of its proper divisors (410683351748).

451306331212 is a wasteful number, since it uses less digits than its factorization.

451306331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819881 (or 4819879 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 451306331212 its reverse (212133603154), we get a palindrome (663439934366).

The spelling of 451306331212 in words is "four hundred fifty-one billion, three hundred six million, three hundred thirty-one thousand, two hundred twelve".