403220421312 has 56 divisors (see below), whose sum is σ = 1066900651056. Its totient is φ = 134400933888.

The previous prime is 403220421283. The next prime is 403220421353. The reversal of 403220421312 is 213124022304.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 8342688 + ... + 8390880.

Almost surely, 2^403220421312 is an apocalyptic number.

It is an amenable number.

403220421312 is an abundant number, since it is smaller than the sum of its proper divisors (663680229744).

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

403220421312 is a wasteful number, since it uses less digits than its factorization.

403220421312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91785 (or 91775 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 403220421312 its reverse (213124022304), we get a palindrome (616344443616).

The spelling of 403220421312 in words is "four hundred three billion, two hundred twenty million, four hundred twenty-one thousand, three hundred twelve".