10013231311121 has 4 divisors (see below), whose sum is σ = 10013733574692. Its totient is φ = 10012729047552.

The previous prime is 10013231311117. The next prime is 10013231311123. The reversal of 10013231311121 is 12111313231001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5336007600400 + 4677223710721 = 2309980^2 + 2162689^2 .

It is a cyclic number.

It is not a de Polignac number, because 10013231311121 - 2² = 10013231311117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10013231311093 and 10013231311102.

It is not an unprimeable number, because it can be changed into a prime (10013231311123) 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, 251101880 + ... + 251141753.

It is an arithmetic number, because the mean of its divisors is an integer number (2503433393673).

Almost surely, 2^{10013231311121} is an apocalyptic number.

It is an amenable number.

10013231311121 is a deficient number, since it is larger than the sum of its proper divisors (502263571).

10013231311121 is an equidigital number, since it uses as much as digits as its factorization.

10013231311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502263570.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 10013231311121 its reverse (12111313231001), we get a palindrome (22124544542122).

The spelling of 10013231311121 in words is "ten trillion, thirteen billion, two hundred thirty-one million, three hundred eleven thousand, one hundred twenty-one".