120012111121003 has 4 divisors (see below), whose sum is σ = 120122113057128. Its totient is φ = 119902109184880.

The previous prime is 120012111120997. The next prime is 120012111121013. The reversal of 120012111121003 is 300121111210021.

It is a happy number.

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 120012111121003 - 2²⁵ = 120012077566571 is a prime.

It is a super-3 number, since 3×120012111121003³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120012111121013) 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, 55000966426 + ... + 55000968607.

It is an arithmetic number, because the mean of its divisors is an integer number (30030528264282).

Almost surely, 2^{120012111121003} is an apocalyptic number.

120012111121003 is a deficient number, since it is larger than the sum of its proper divisors (110001936125).

120012111121003 is a wasteful number, since it uses less digits than its factorization.

120012111121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110001936124.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 120012111121003 its reverse (300121111210021), we get a palindrome (420133222331024).

The spelling of 120012111121003 in words is "one hundred twenty trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, three".