1011120120123 has 32 divisors (see below), whose sum is σ = 1372998721536. Its totient is φ = 661807335168.

The previous prime is 1011120120107. The next prime is 1011120120149. The reversal of 1011120120123 is 3210210211101.

It is not a de Polignac number, because 1011120120123 - 2⁴ = 1011120120107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011120120623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14435061 + ... + 14504937.

It is an arithmetic number, because the mean of its divisors is an integer number (42906210048).

Almost surely, 2^{1011120120123} is an apocalyptic number.

1011120120123 is a deficient number, since it is larger than the sum of its proper divisors (361878601413).

1011120120123 is a wasteful number, since it uses less digits than its factorization.

1011120120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70403.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1011120120123 its reverse (3210210211101), we get a palindrome (4221330331224).

The spelling of 1011120120123 in words is "one trillion, eleven billion, one hundred twenty million, one hundred twenty thousand, one hundred twenty-three".