423441212320 has 96 divisors (see below), whose sum is σ = 1143657906048. Its totient is φ = 145133288448.

The previous prime is 423441212303. The next prime is 423441212329. The reversal of 423441212320 is 23212144324.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (423441212329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3528342 + ... + 3646378.

It is an arithmetic number, because the mean of its divisors is an integer number (11913103188).

Almost surely, 2^423441212320 is an apocalyptic number.

423441212320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423441212320 is an abundant number, since it is smaller than the sum of its proper divisors (720216693728).

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

423441212320 is a wasteful number, since it uses less digits than its factorization.

423441212320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121262 (or 121254 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 423441212320 its reverse (23212144324), we get a palindrome (446653356644).

The spelling of 423441212320 in words is "four hundred twenty-three billion, four hundred forty-one million, two hundred twelve thousand, three hundred twenty".