203320122000 has 160 divisors (see below), whose sum is σ = 660510474624. Its totient is φ = 53804608000.

The previous prime is 203320121987. The next prime is 203320122013. The reversal of 203320122000 is 221023302.

It is an interprime number because it is at equal distance from previous prime (203320121987) and next prime (203320122013).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 656662 + ... + 915338.

Almost surely, 2^203320122000 is an apocalyptic number.

203320122000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203320122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330255237312).

203320122000 is an abundant number, since it is smaller than the sum of its proper divisors (457190352624).

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

203320122000 is a wasteful number, since it uses less digits than its factorization.

203320122000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258834 (or 258818 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 203320122000 its reverse (221023302), we get a palindrome (203541145302).

The spelling of 203320122000 in words is "two hundred three billion, three hundred twenty million, one hundred twenty-two thousand".