20013061402121 has 2 divisors, whose sum is σ = 20013061402122. Its totient is φ = 20013061402120.

The previous prime is 20013061402091. The next prime is 20013061402151. The reversal of 20013061402121 is 12120416031002.

It is a balanced prime because it is at equal distance from previous prime (20013061402091) and next prime (20013061402151).

It can be written as a sum of positive squares in only one way, i.e., 17731375626496 + 2281685775625 = 4210864^2 + 1510525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20013061402121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20013061402151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006530701060 + 10006530701061.

It is an arithmetic number, because the mean of its divisors is an integer number (10006530701061).

Almost surely, 2^{20013061402121} is an apocalyptic number.

It is an amenable number.

20013061402121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013061402121 is an equidigital number, since it uses as much as digits as its factorization.

20013061402121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20013061402121 its reverse (12120416031002), we get a palindrome (32133477433123).

The spelling of 20013061402121 in words is "twenty trillion, thirteen billion, sixty-one million, four hundred two thousand, one hundred twenty-one".