20013061475263 has 4 divisors (see below), whose sum is σ = 20207363043088. Its totient is φ = 19818759907440.

The previous prime is 20013061475249. The next prime is 20013061475311. The reversal of 20013061475263 is 36257416031002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20013061475263 - 2⁹ = 20013061474751 is a prime.

It is a super-2 number, since 2×20013061475263² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013061475863) 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, 97150783758 + ... + 97150783963.

It is an arithmetic number, because the mean of its divisors is an integer number (5051840760772).

Almost surely, 2^{20013061475263} is an apocalyptic number.

20013061475263 is a deficient number, since it is larger than the sum of its proper divisors (194301567825).

20013061475263 is a wasteful number, since it uses less digits than its factorization.

20013061475263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194301567824.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 20013061475263 in words is "twenty trillion, thirteen billion, sixty-one million, four hundred seventy-five thousand, two hundred sixty-three".