20201230121130 has 80 divisors (see below), whose sum is σ = 54335547885960. Its totient is φ = 5385340021248.

The previous prime is 20201230121119. The next prime is 20201230121141. The reversal of 20201230121130 is 3112103210202.

20201230121130 is a `hidden beast` number, since 20 + 201 + 230 + 1 + 211 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20201230121119) and next prime (20201230121141).

It can be written as a sum of positive squares in 4 ways, for example, as 19298123919369 + 903106201761 = 4392963^2 + 950319^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1190475 + ... + 6466814.

Almost surely, 2^{20201230121130} is an apocalyptic number.

20201230121130 is an abundant number, since it is smaller than the sum of its proper divisors (34134317764830).

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

20201230121130 is a wasteful number, since it uses less digits than its factorization.

20201230121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660565 (or 7660556 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20201230121130 its reverse (3112103210202), we get a palindrome (23313333331332).

The spelling of 20201230121130 in words is "twenty trillion, two hundred one billion, two hundred thirty million, one hundred twenty-one thousand, one hundred thirty".