11312021021069 has 2 divisors, whose sum is σ = 11312021021070. Its totient is φ = 11312021021068.

The previous prime is 11312021021057. The next prime is 11312021021101. The reversal of 11312021021069 is 96012012021311.

11312021021069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10981237302025 + 330783719044 = 3313795^2 + 575138^2 .

It is a cyclic number.

It is not a de Polignac number, because 11312021021069 - 2¹² = 11312021016973 is a prime.

It is a super-2 number, since 2×11312021021069² (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 (11312021021039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656010510534 + 5656010510535.

It is an arithmetic number, because the mean of its divisors is an integer number (5656010510535).

Almost surely, 2^{11312021021069} is an apocalyptic number.

It is an amenable number.

11312021021069 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312021021069 is an equidigital number, since it uses as much as digits as its factorization.

11312021021069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 11312021021069 in words is "eleven trillion, three hundred twelve billion, twenty-one million, twenty-one thousand, sixty-nine".