451212140000 has 60 divisors (see below), whose sum is σ = 1110049595424. Its totient is φ = 180484848000.

The previous prime is 451212139981. The next prime is 451212140003. The reversal of 451212140000 is 41212154.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451212140003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11260304 + ... + 11300303.

Almost surely, 2^451212140000 is an apocalyptic number.

451212140000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451212140000 is an abundant number, since it is smaller than the sum of its proper divisors (658837455424).

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

451212140000 is an equidigital number, since it uses as much as digits as its factorization.

451212140000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22560637 (or 22560614 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 451212140000 its reverse (41212154), we get a palindrome (451253352154).

The spelling of 451212140000 in words is "four hundred fifty-one billion, two hundred twelve million, one hundred forty thousand".