320400201024 has 56 divisors (see below), whose sum is σ = 941917262720. Its totient is φ = 106800066432.

The previous prime is 320400201019. The next prime is 320400201049. The reversal of 320400201024 is 420102004023.

It is a super-2 number, since 2×320400201024² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 320400200988 and 320400201006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92706664 + ... + 92710119.

It is an arithmetic number, because the mean of its divisors is an integer number (16819951120).

Almost surely, 2^320400201024 is an apocalyptic number.

It is an amenable number.

320400201024 is an abundant number, since it is smaller than the sum of its proper divisors (621517061696).

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

320400201024 is a wasteful number, since it uses less digits than its factorization.

320400201024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185416804 (or 185416788 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 320400201024 its reverse (420102004023), we get a palindrome (740502205047).

The spelling of 320400201024 in words is "three hundred twenty billion, four hundred million, two hundred one thousand, twenty-four".