1075121900269 has 4 divisors (see below), whose sum is σ = 1095407219196. Its totient is φ = 1054836581344.

The previous prime is 1075121900233. The next prime is 1075121900299. The reversal of 1075121900269 is 9620091215701.

1075121900269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 871394245225 + 203727655044 = 933485^2 + 451362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1075121900269 is a prime.

It is a super-4 number, since 4×1075121900269⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075121900219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10142659384 + ... + 10142659489.

It is an arithmetic number, because the mean of its divisors is an integer number (273851804799).

Almost surely, 2^{1075121900269} is an apocalyptic number.

It is an amenable number.

1075121900269 is a deficient number, since it is larger than the sum of its proper divisors (20285318927).

1075121900269 is an equidigital number, since it uses as much as digits as its factorization.

1075121900269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20285318926.

The product of its (nonzero) digits is 68040, while the sum is 43.

The spelling of 1075121900269 in words is "one trillion, seventy-five billion, one hundred twenty-one million, nine hundred thousand, two hundred sixty-nine".