1000578128111 has 4 divisors (see below), whose sum is σ = 1001469115992. Its totient is φ = 999687140232.

The previous prime is 1000578128101. The next prime is 1000578128159. The reversal of 1000578128111 is 1118218750001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1000578128111 - 2²⁶ = 1000511019247 is a prime.

It is a super-2 number, since 2×1000578128111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000578128101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445492256 + ... + 445494501.

It is an arithmetic number, because the mean of its divisors is an integer number (250367278998).

Almost surely, 2^{1000578128111} is an apocalyptic number.

1000578128111 is a deficient number, since it is larger than the sum of its proper divisors (890987881).

1000578128111 is an equidigital number, since it uses as much as digits as its factorization.

1000578128111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890987880.

The product of its (nonzero) digits is 4480, while the sum is 35.

The spelling of 1000578128111 in words is "one trillion, five hundred seventy-eight million, one hundred twenty-eight thousand, one hundred eleven".