20013061474751 has 2 divisors, whose sum is σ = 20013061474752. Its totient is φ = 20013061474750.

The previous prime is 20013061474729. The next prime is 20013061474759. The reversal of 20013061474751 is 15747416031002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20013061474751 - 2⁶ = 20013061474687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20013061474699 and 20013061474708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20013061474759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006530737375 + 10006530737376.

It is an arithmetic number, because the mean of its divisors is an integer number (10006530737376).

Almost surely, 2^{20013061474751} is an apocalyptic number.

20013061474751 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013061474751 is an equidigital number, since it uses as much as digits as its factorization.

20013061474751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 20013061474751 in words is "twenty trillion, thirteen billion, sixty-one million, four hundred seventy-four thousand, seven hundred fifty-one".