20344101269 has 2 divisors, whose sum is σ = 20344101270. Its totient is φ = 20344101268.

The previous prime is 20344101247. The next prime is 20344101347. The reversal of 20344101269 is 96210144302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18944219044 + 1399882225 = 137638^2 + 37415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20344101269 is a prime.

It is a super-2 number, since 2×20344101269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20344101469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172050634 + 10172050635.

It is an arithmetic number, because the mean of its divisors is an integer number (10172050635).

Almost surely, 2^20344101269 is an apocalyptic number.

It is an amenable number.

20344101269 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344101269 is an equidigital number, since it uses as much as digits as its factorization.

20344101269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 20344101269 in words is "twenty billion, three hundred forty-four million, one hundred one thousand, two hundred sixty-nine".