420023213412 has 96 divisors (see below), whose sum is σ = 1115998248960. Its totient is φ = 121706196480.

The previous prime is 420023213371. The next prime is 420023213413. The reversal of 420023213412 is 214312320024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420023213413) 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, 10037389 + ... + 10079147.

It is an arithmetic number, because the mean of its divisors is an integer number (11624981760).

Almost surely, 2^420023213412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420023213412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557999124480).

420023213412 is an abundant number, since it is smaller than the sum of its proper divisors (695975035548).

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

420023213412 is a wasteful number, since it uses less digits than its factorization.

420023213412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45113 (or 45111 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 420023213412 its reverse (214312320024), we get a palindrome (634335533436).

The spelling of 420023213412 in words is "four hundred twenty billion, twenty-three million, two hundred thirteen thousand, four hundred twelve".