1020101123111 has 4 divisors (see below), whose sum is σ = 1165829854992. Its totient is φ = 874372391232.

The previous prime is 1020101123087. The next prime is 1020101123117. The reversal of 1020101123111 is 1113211010201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020101123111 - 2³⁰ = 1019027381287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020101123117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72864365930 + ... + 72864365943.

It is an arithmetic number, because the mean of its divisors is an integer number (291457463748).

Almost surely, 2^{1020101123111} is an apocalyptic number.

1020101123111 is a deficient number, since it is larger than the sum of its proper divisors (145728731881).

1020101123111 is an equidigital number, since it uses as much as digits as its factorization.

1020101123111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145728731880.

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

Adding to 1020101123111 its reverse (1113211010201), we get a palindrome (2133312133312).

The spelling of 1020101123111 in words is "one trillion, twenty billion, one hundred one million, one hundred twenty-three thousand, one hundred eleven".