20103120200 has 48 divisors (see below), whose sum is σ = 46793457780. Its totient is φ = 8032008960.

The previous prime is 20103120199. The next prime is 20103120253. The reversal of 20103120200 is 202130102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9459896644 + 10643223556 = 97262^2 + 103166^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118094 + ... + 232706.

Almost surely, 2^20103120200 is an apocalyptic number.

20103120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103120200 is an abundant number, since it is smaller than the sum of its proper divisors (26690337580).

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

20103120200 is a wasteful number, since it uses less digits than its factorization.

20103120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115506 (or 115497 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20103120200 its reverse (202130102), we get a palindrome (20305250302).

The spelling of 20103120200 in words is "twenty billion, one hundred three million, one hundred twenty thousand, two hundred".