1130554541561 has 2 divisors, whose sum is σ = 1130554541562. Its totient is φ = 1130554541560.

The previous prime is 1130554541521. The next prime is 1130554541573. The reversal of 1130554541561 is 1651454550311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 889001951161 + 241552590400 = 942869^2 + 491480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1130554541561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1130554541521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565277270780 + 565277270781.

It is an arithmetic number, because the mean of its divisors is an integer number (565277270781).

Almost surely, 2^{1130554541561} is an apocalyptic number.

It is an amenable number.

1130554541561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130554541561 is an equidigital number, since it uses as much as digits as its factorization.

1130554541561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180000, while the sum is 41.

The spelling of 1130554541561 in words is "one trillion, one hundred thirty billion, five hundred fifty-four million, five hundred forty-one thousand, five hundred sixty-one".