4401023001320 has 128 divisors (see below), whose sum is σ = 11532483734400. Its totient is φ = 1506232161280.

The previous prime is 4401023001313. The next prime is 4401023001377. The reversal of 4401023001320 is 231003201044.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4401023001292 and 4401023001301.

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, 1526210 + ... + 3336369.

It is an arithmetic number, because the mean of its divisors is an integer number (90097529175).

Almost surely, 2^{4401023001320} is an apocalyptic number.

4401023001320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4401023001320 is an abundant number, since it is smaller than the sum of its proper divisors (7131460733080).

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

4401023001320 is a wasteful number, since it uses less digits than its factorization.

4401023001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862640 (or 4862614 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 4401023001320 its reverse (231003201044), we get a palindrome (4632026202364).

The spelling of 4401023001320 in words is "four trillion, four hundred one billion, twenty-three million, one thousand, three hundred twenty".