1013132123123 has 4 divisors (see below), whose sum is σ = 1017074271720. Its totient is φ = 1009189974528.

The previous prime is 1013132123119. The next prime is 1013132123153. The reversal of 1013132123123 is 3213212313101.

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 1013132123123 - 2² = 1013132123119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013132123153) 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, 1971073913 + ... + 1971074426.

It is an arithmetic number, because the mean of its divisors is an integer number (254268567930).

Almost surely, 2^{1013132123123} is an apocalyptic number.

1013132123123 is a deficient number, since it is larger than the sum of its proper divisors (3942148597).

1013132123123 is an equidigital number, since it uses as much as digits as its factorization.

1013132123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942148596.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1013132123123 its reverse (3213212313101), we get a palindrome (4226344436224).

The spelling of 1013132123123 in words is "one trillion, thirteen billion, one hundred thirty-two million, one hundred twenty-three thousand, one hundred twenty-three".