1011020121110 has 128 divisors (see below), whose sum is σ = 2026866530304. Its totient is φ = 361149184000.

The previous prime is 1011020121103. The next prime is 1011020121121. The reversal of 1011020121110 is 111210201101.

It is a junction number, because it is equal to n+sod(n) for n = 1011020121091 and 1011020121100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 258108872 + ... + 258112788.

It is an arithmetic number, because the mean of its divisors is an integer number (15834894768).

Almost surely, 2^{1011020121110} is an apocalyptic number.

1011020121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011020121110 is an abundant number, since it is smaller than the sum of its proper divisors (1015846409194).

1011020121110 is a wasteful number, since it uses less digits than its factorization.

1011020121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011020121110 its reverse (111210201101), we get a palindrome (1122230322211).

The spelling of 1011020121110 in words is "one trillion, eleven billion, twenty million, one hundred twenty-one thousand, one hundred ten".