1020110121111 has 8 divisors (see below), whose sum is σ = 1360225125504. Its totient is φ = 680034265400.

The previous prime is 1020110121073. The next prime is 1020110121133. The reversal of 1020110121111 is 1111210110201.

1020110121111 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020110121111 - 2⁹ = 1020110120599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020110121911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9726315 + ... + 9830636.

It is an arithmetic number, because the mean of its divisors is an integer number (170028140688).

Almost surely, 2^{1020110121111} is an apocalyptic number.

1020110121111 is a deficient number, since it is larger than the sum of its proper divisors (340115004393).

1020110121111 is a wasteful number, since it uses less digits than its factorization.

1020110121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19574341.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1020110121111 its reverse (1111210110201), we get a palindrome (2131320231312).

The spelling of 1020110121111 in words is "one trillion, twenty billion, one hundred ten million, one hundred twenty-one thousand, one hundred eleven".