1420333440312 has 128 divisors (see below), whose sum is σ = 3756876318720. Its totient is φ = 446747136000.

The previous prime is 1420333440293. The next prime is 1420333440313. The reversal of 1420333440312 is 2130443330241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420333440312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420333440313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58891168 + ... + 58915280.

It is an arithmetic number, because the mean of its divisors is an integer number (29350596240).

Almost surely, 2^{1420333440312} is an apocalyptic number.

1420333440312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420333440312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1878438159360).

1420333440312 is an abundant number, since it is smaller than the sum of its proper divisors (2336542878408).

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

1420333440312 is a wasteful number, since it uses less digits than its factorization.

1420333440312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26125 (or 26121 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 1420333440312 its reverse (2130443330241), we get a palindrome (3550776770553).

The spelling of 1420333440312 in words is "one trillion, four hundred twenty billion, three hundred thirty-three million, four hundred forty thousand, three hundred twelve".