20013061475311 has 2 divisors, whose sum is σ = 20013061475312. Its totient is φ = 20013061475310.

The previous prime is 20013061475249. The next prime is 20013061475317. The reversal of 20013061475311 is 11357416031002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20013061475311 is a prime.

It is a super-2 number, since 2×20013061475311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20013061475317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006530737655 + 10006530737656.

It is an arithmetic number, because the mean of its divisors is an integer number (10006530737656).

Almost surely, 2^{20013061475311} is an apocalyptic number.

20013061475311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013061475311 is an equidigital number, since it uses as much as digits as its factorization.

20013061475311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 20013061475311 in words is "twenty trillion, thirteen billion, sixty-one million, four hundred seventy-five thousand, three hundred eleven".