20103120030 has 64 divisors (see below), whose sum is σ = 55193960448. Its totient is φ = 4590501120.

The previous prime is 20103120029. The next prime is 20103120043. The reversal of 20103120030 is 3002130102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20103119988 and 20103120015.

It is a congruent number.

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, 170595 + ... + 263265.

It is an arithmetic number, because the mean of its divisors is an integer number (862405632).

Almost surely, 2^20103120030 is an apocalyptic number.

20103120030 is an abundant number, since it is smaller than the sum of its proper divisors (35090840418).

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

20103120030 is a wasteful number, since it uses less digits than its factorization.

20103120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93721.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20103120030 its reverse (3002130102), we get a palindrome (23105250132).

The spelling of 20103120030 in words is "twenty billion, one hundred three million, one hundred twenty thousand, thirty".