321430123144020 has 96 divisors (see below), whose sum is σ = 981914420269440. Its totient is φ = 77915192296960.

The previous prime is 321430123144003. The next prime is 321430123144027. The reversal of 321430123144020 is 20441321034123.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321430123144027) 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, 15603975 + ... + 29771534.

It is an arithmetic number, because the mean of its divisors is an integer number (10228275211140).

Almost surely, 2^{321430123144020} is an apocalyptic number.

321430123144020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321430123144020 is an abundant number, since it is smaller than the sum of its proper divisors (660484297125420).

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

321430123144020 is a wasteful number, since it uses less digits than its factorization.

321430123144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45386265 (or 45386263 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 321430123144020 its reverse (20441321034123), we get a palindrome (341871444178143).

The spelling of 321430123144020 in words is "three hundred twenty-one trillion, four hundred thirty billion, one hundred twenty-three million, one hundred forty-four thousand, twenty".