1423231204020 has 96 divisors (see below), whose sum is σ = 4053342384000. Its totient is φ = 373026422784.

The previous prime is 1423231203997. The next prime is 1423231204033. The reversal of 1423231204020 is 204021323241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20671092 + ... + 20739828.

It is an arithmetic number, because the mean of its divisors is an integer number (42222316500).

Almost surely, 2^{1423231204020} is an apocalyptic number.

1423231204020 is a gapful number since it is divisible by the number (10) 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 1423231204020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2026671192000).

1423231204020 is an abundant number, since it is smaller than the sum of its proper divisors (2630111179980).

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

1423231204020 is a wasteful number, since it uses less digits than its factorization.

1423231204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74657 (or 74655 counting only the distinct ones).

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

Adding to 1423231204020 its reverse (204021323241), we get a palindrome (1627252527261).

The spelling of 1423231204020 in words is "one trillion, four hundred twenty-three billion, two hundred thirty-one million, two hundred four thousand, twenty".