451111342120 has 32 divisors (see below), whose sum is σ = 1015019637120. Its totient is φ = 180441138240.

The previous prime is 451111342081. The next prime is 451111342141. The reversal of 451111342120 is 21243111154.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4135885 + ... + 4243555.

It is an arithmetic number, because the mean of its divisors is an integer number (31719363660).

Almost surely, 2^451111342120 is an apocalyptic number.

451111342120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451111342120 is an abundant number, since it is smaller than the sum of its proper divisors (563908295000).

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

451111342120 is a wasteful number, since it uses less digits than its factorization.

451111342120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212425 (or 212421 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 451111342120 its reverse (21243111154), we get a palindrome (472354453274).

The spelling of 451111342120 in words is "four hundred fifty-one billion, one hundred eleven million, three hundred forty-two thousand, one hundred twenty".