1012140140069 has 2 divisors, whose sum is σ = 1012140140070. Its totient is φ = 1012140140068.

The previous prime is 1012140140051. The next prime is 1012140140071. The reversal of 1012140140069 is 9600410412101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 970053617569 + 42086522500 = 984913^2 + 205150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012140140069 - 2²⁰ = 1012139091493 is a prime.

It is a super-2 number, since 2×1012140140069² (a number of 25 digits) contains 22 as substring.

Together with 1012140140071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012140140009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506070070034 + 506070070035.

It is an arithmetic number, because the mean of its divisors is an integer number (506070070035).

Almost surely, 2^{1012140140069} is an apocalyptic number.

It is an amenable number.

1012140140069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012140140069 is an equidigital number, since it uses as much as digits as its factorization.

1012140140069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 1012140140069 in words is "one trillion, twelve billion, one hundred forty million, one hundred forty thousand, sixty-nine".