20110121232130 has 32 divisors (see below), whose sum is σ = 38238986943360. Its totient is φ = 7593557650560.

The previous prime is 20110121232077. The next prime is 20110121232143. The reversal of 20110121232130 is 3123212101102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 20110121232098 and 20110121232107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188278894 + ... + 188385673.

It is an arithmetic number, because the mean of its divisors is an integer number (1194968341980).

Almost surely, 2^{20110121232130} is an apocalyptic number.

20110121232130 is a deficient number, since it is larger than the sum of its proper divisors (18128865711230).

20110121232130 is a wasteful number, since it uses less digits than its factorization.

20110121232130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376664874.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20110121232130 its reverse (3123212101102), we get a palindrome (23233333333232).

The spelling of 20110121232130 in words is "twenty trillion, one hundred ten billion, one hundred twenty-one million, two hundred thirty-two thousand, one hundred thirty".