1079821431911 has 2 divisors, whose sum is σ = 1079821431912. Its totient is φ = 1079821431910.

The previous prime is 1079821431883. The next prime is 1079821431919. The reversal of 1079821431911 is 1191341289701.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1079821431911 is a prime.

It is a super-2 number, since 2×1079821431911² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1079821431919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539910715955 + 539910715956.

It is an arithmetic number, because the mean of its divisors is an integer number (539910715956).

Almost surely, 2^{1079821431911} is an apocalyptic number.

1079821431911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1079821431911 is an equidigital number, since it uses as much as digits as its factorization.

1079821431911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 47.

The spelling of 1079821431911 in words is "one trillion, seventy-nine billion, eight hundred twenty-one million, four hundred thirty-one thousand, nine hundred eleven".