1154543554111 has 2 divisors, whose sum is σ = 1154543554112. Its totient is φ = 1154543554110.

The previous prime is 1154543554081. The next prime is 1154543554133. The reversal of 1154543554111 is 1114553454511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1154543554111 - 2²³ = 1154535165503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154543554811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577271777055 + 577271777056.

It is an arithmetic number, because the mean of its divisors is an integer number (577271777056).

Almost surely, 2^{1154543554111} is an apocalyptic number.

1154543554111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154543554111 is an equidigital number, since it uses as much as digits as its factorization.

1154543554111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120000, while the sum is 40.

The spelling of 1154543554111 in words is "one trillion, one hundred fifty-four billion, five hundred forty-three million, five hundred fifty-four thousand, one hundred eleven".