1231023120003 has 32 divisors (see below), whose sum is σ = 1862215387200. Its totient is φ = 803531363328.

The previous prime is 1231023119969. The next prime is 1231023120007. The reversal of 1231023120003 is 3000213201321.

1231023120003 is a `hidden beast` number, since 1 + 231 + 0 + 231 + 200 + 0 + 3 = 666.

It is not a de Polignac number, because 1231023120003 - 2⁶ = 1231023119939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231023120007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2009418 + ... + 2549471.

It is an arithmetic number, because the mean of its divisors is an integer number (58194230850).

Almost surely, 2^{1231023120003} is an apocalyptic number.

1231023120003 is a deficient number, since it is larger than the sum of its proper divisors (631192267197).

1231023120003 is a wasteful number, since it uses less digits than its factorization.

1231023120003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4559108 (or 4559102 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1231023120003 its reverse (3000213201321), we get a palindrome (4231236321324).

The spelling of 1231023120003 in words is "one trillion, two hundred thirty-one billion, twenty-three million, one hundred twenty thousand, three".