1075167831421 has 2 divisors, whose sum is σ = 1075167831422. Its totient is φ = 1075167831420.

The previous prime is 1075167831389. The next prime is 1075167831433. The reversal of 1075167831421 is 1241387615701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 705608400025 + 369559431396 = 840005^2 + 607914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075167831421 - 2⁵ = 1075167831389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1075167841421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537583915710 + 537583915711.

It is an arithmetic number, because the mean of its divisors is an integer number (537583915711).

Almost surely, 2^{1075167831421} is an apocalyptic number.

It is an amenable number.

1075167831421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075167831421 is an equidigital number, since it uses as much as digits as its factorization.

1075167831421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 1075167831421 in words is "one trillion, seventy-five billion, one hundred sixty-seven million, eight hundred thirty-one thousand, four hundred twenty-one".