203212401320 has 16 divisors (see below), whose sum is σ = 457227903060. Its totient is φ = 81284960512.

The previous prime is 203212401253. The next prime is 203212401349. The reversal of 203212401320 is 23104212302.

It can be written as a sum of positive squares in 2 ways, for example, as 199807212004 + 3405189316 = 446998^2 + 58354^2 .

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 = 203212401292 and 203212401301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2540154977 + ... + 2540155056.

Almost surely, 2^203212401320 is an apocalyptic number.

203212401320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203212401320 is an abundant number, since it is smaller than the sum of its proper divisors (254015501740).

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

203212401320 is a wasteful number, since it uses less digits than its factorization.

203212401320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080310044 (or 5080310040 counting only the distinct ones).

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

Adding to 203212401320 its reverse (23104212302), we get a palindrome (226316613622).

The spelling of 203212401320 in words is "two hundred three billion, two hundred twelve million, four hundred one thousand, three hundred twenty".