1001231325123 has 4 divisors (see below), whose sum is σ = 1334975100168. Its totient is φ = 667487550080.

The previous prime is 1001231325113. The next prime is 1001231325167. The reversal of 1001231325123 is 3215231321001.

It is a happy number.

1001231325123 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 1001231325123 - 2⁵ = 1001231325091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001231325093 and 1001231325102.

It is not an unprimeable number, because it can be changed into a prime (1001231325113) 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, 166871887518 + ... + 166871887523.

It is an arithmetic number, because the mean of its divisors is an integer number (333743775042).

Almost surely, 2^{1001231325123} is an apocalyptic number.

1001231325123 is a deficient number, since it is larger than the sum of its proper divisors (333743775045).

1001231325123 is an equidigital number, since it uses as much as digits as its factorization.

1001231325123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333743775044.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 1001231325123 its reverse (3215231321001), we get a palindrome (4216462646124).

The spelling of 1001231325123 in words is "one trillion, one billion, two hundred thirty-one million, three hundred twenty-five thousand, one hundred twenty-three".