20130121011110 has 64 divisors (see below), whose sum is σ = 40122005184000. Its totient is φ = 7210107717120.

The previous prime is 20130121011109. The next prime is 20130121011149. The reversal of 20130121011110 is 1111012103102.

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, 81292766 + ... + 81540014.

It is an arithmetic number, because the mean of its divisors is an integer number (626906331000).

Almost surely, 2^{20130121011110} is an apocalyptic number.

20130121011110 is a deficient number, since it is larger than the sum of its proper divisors (19991884172890).

20130121011110 is a wasteful number, since it uses less digits than its factorization.

20130121011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258381.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 20130121011110 its reverse (1111012103102), we get a palindrome (21241133114212).

The spelling of 20130121011110 in words is "twenty trillion, one hundred thirty billion, one hundred twenty-one million, eleven thousand, one hundred ten".