403421101220 has 12 divisors (see below), whose sum is σ = 847184312604. Its totient is φ = 161368440480.

The previous prime is 403421101219. The next prime is 403421101247. The reversal of 403421101220 is 22101124304.

It can be written as a sum of positive squares in 2 ways, for example, as 202552203364 + 200868897856 = 450058^2 + 448184^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 20171055061 = 403421101220 / (4 + 0 + 3 + 4 + 2 + 1 + 1 + 0 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 403421101192 and 403421101201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10085527511 + ... + 10085527550.

It is an arithmetic number, because the mean of its divisors is an integer number (70598692717).

Almost surely, 2^403421101220 is an apocalyptic number.

It is an amenable number.

403421101220 is an abundant number, since it is smaller than the sum of its proper divisors (443763211384).

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

403421101220 is a wasteful number, since it uses less digits than its factorization.

403421101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20171055070 (or 20171055068 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 403421101220 its reverse (22101124304), we get a palindrome (425522225524).

The spelling of 403421101220 in words is "four hundred three billion, four hundred twenty-one million, one hundred one thousand, two hundred twenty".