21374270011069 has 2 divisors, whose sum is σ = 21374270011070. Its totient is φ = 21374270011068.

The previous prime is 21374270011009. The next prime is 21374270011091. The reversal of 21374270011069 is 96011007247312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11035717220025 + 10338552791044 = 3322005^2 + 3215362^2 .

It is a cyclic number.

It is not a de Polignac number, because 21374270011069 - 2⁷ = 21374270010941 is a prime.

It is a super-2 number, since 2×21374270011069² (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 (21374270011009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10687135005534 + 10687135005535.

It is an arithmetic number, because the mean of its divisors is an integer number (10687135005535).

Almost surely, 2^{21374270011069} is an apocalyptic number.

It is an amenable number.

21374270011069 is a deficient number, since it is larger than the sum of its proper divisors (1).

21374270011069 is an equidigital number, since it uses as much as digits as its factorization.

21374270011069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 21374270011069 in words is "twenty-one trillion, three hundred seventy-four billion, two hundred seventy million, eleven thousand, sixty-nine".