20115201230 has 16 divisors (see below), whose sum is σ = 36232307424. Its totient is φ = 8040537120.

The previous prime is 20115201179. The next prime is 20115201251. The reversal of 20115201230 is 3210251102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20115201199 and 20115201208.

It is a congruent number.

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, 677666 + ... + 706725.

It is an arithmetic number, because the mean of its divisors is an integer number (2264519214).

Almost surely, 2^20115201230 is an apocalyptic number.

20115201230 is a deficient number, since it is larger than the sum of its proper divisors (16117106194).

20115201230 is a wasteful number, since it uses less digits than its factorization.

20115201230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385851.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 20115201230 its reverse (3210251102), we get a palindrome (23325452332).

The spelling of 20115201230 in words is "twenty billion, one hundred fifteen million, two hundred one thousand, two hundred thirty".