11120031124021 has 2 divisors, whose sum is σ = 11120031124022. Its totient is φ = 11120031124020.

The previous prime is 11120031123991. The next prime is 11120031124039. The reversal of 11120031124021 is 12042113002111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6231443793796 + 4888587330225 = 2496286^2 + 2211015^2 .

It is a cyclic number.

It is not a de Polignac number, because 11120031124021 - 2²³ = 11120022735413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11120031124021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11120031124061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560015562010 + 5560015562011.

It is an arithmetic number, because the mean of its divisors is an integer number (5560015562011).

Almost surely, 2^{11120031124021} is an apocalyptic number.

It is an amenable number.

11120031124021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120031124021 is an equidigital number, since it uses as much as digits as its factorization.

11120031124021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11120031124021 its reverse (12042113002111), we get a palindrome (23162144126132).

The spelling of 11120031124021 in words is "eleven trillion, one hundred twenty billion, thirty-one million, one hundred twenty-four thousand, twenty-one".