1011000230111 has 4 divisors (see below), whose sum is σ = 1011128749512. Its totient is φ = 1010871710712.

The previous prime is 1011000230101. The next prime is 1011000230147. The reversal of 1011000230111 is 1110320001101.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011000230111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011000230092 and 1011000230101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011000230101) 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, 64247900 + ... + 64263633.

It is an arithmetic number, because the mean of its divisors is an integer number (252782187378).

Almost surely, 2^{1011000230111} is an apocalyptic number.

1011000230111 is a deficient number, since it is larger than the sum of its proper divisors (128519401).

1011000230111 is an equidigital number, since it uses as much as digits as its factorization.

1011000230111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128519400.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 1011000230111 its reverse (1110320001101), we get a palindrome (2121320231212).

The spelling of 1011000230111 in words is "one trillion, eleven billion, two hundred thirty thousand, one hundred eleven".