1054310111989 has 2 divisors, whose sum is σ = 1054310111990. Its totient is φ = 1054310111988.

The previous prime is 1054310111963. The next prime is 1054310112017. The reversal of 1054310111989 is 9891110134501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 656168041764 + 398142070225 = 810042^2 + 630985^2 .

It is an emirp because it is prime and its reverse (9891110134501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1054310111989 - 2⁵ = 1054310111957 is a prime.

It is a super-2 number, since 2×1054310111989² (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 (1054310111689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527155055994 + 527155055995.

It is an arithmetic number, because the mean of its divisors is an integer number (527155055995).

Almost surely, 2^{1054310111989} is an apocalyptic number.

It is an amenable number.

1054310111989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054310111989 is an equidigital number, since it uses as much as digits as its factorization.

1054310111989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 43.

The spelling of 1054310111989 in words is "one trillion, fifty-four billion, three hundred ten million, one hundred eleven thousand, nine hundred eighty-nine".