1000123020111 has 8 divisors (see below), whose sum is σ = 1356099010560. Its totient is φ = 655447854872.

The previous prime is 1000123020107. The next prime is 1000123020173. The reversal of 1000123020111 is 1110203210001.

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 1000123020111 - 2² = 1000123020107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000113020111) 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, 2825206095 + ... + 2825206448.

It is an arithmetic number, because the mean of its divisors is an integer number (169512376320).

Almost surely, 2^{1000123020111} is an apocalyptic number.

1000123020111 is a deficient number, since it is larger than the sum of its proper divisors (355975990449).

1000123020111 is an equidigital number, since it uses as much as digits as its factorization.

1000123020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5650412605.

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

Adding to 1000123020111 its reverse (1110203210001), we get a palindrome (2110326230112).

The spelling of 1000123020111 in words is "one trillion, one hundred twenty-three million, twenty thousand, one hundred eleven".