20130640774253 has 2 divisors, whose sum is σ = 20130640774254. Its totient is φ = 20130640774252.

The previous prime is 20130640774243. The next prime is 20130640774259. The reversal of 20130640774253 is 35247704603102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18652612163689 + 1478028610564 = 4318867^2 + 1215742^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130640774253 - 2¹⁴ = 20130640757869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130640774259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065320387126 + 10065320387127.

It is an arithmetic number, because the mean of its divisors is an integer number (10065320387127).

Almost surely, 2^{20130640774253} is an apocalyptic number.

It is an amenable number.

20130640774253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130640774253 is an equidigital number, since it uses as much as digits as its factorization.

20130640774253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 20130640774253 in words is "twenty trillion, one hundred thirty billion, six hundred forty million, seven hundred seventy-four thousand, two hundred fifty-three".