1011051050111 has 4 divisors (see below), whose sum is σ = 1070524641312. Its totient is φ = 951577458912.

The previous prime is 1011051050081. The next prime is 1011051050123. The reversal of 1011051050111 is 1110501501101.

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-1011051050111 is a prime.

It is a super-2 number, since 2×1011051050111² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 59473591183 = 1011051050111 / (1 + 0 + 1 + 1 + 0 + 5 + 1 + 0 + 5 + 0 + 1 + 1 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011051050111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011051050171) 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, 29736795575 + ... + 29736795608.

It is an arithmetic number, because the mean of its divisors is an integer number (267631160328).

Almost surely, 2^{1011051050111} is an apocalyptic number.

1011051050111 is a deficient number, since it is larger than the sum of its proper divisors (59473591201).

1011051050111 is an equidigital number, since it uses as much as digits as its factorization.

1011051050111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59473591200.

The product of its (nonzero) digits is 25, while the sum is 17.

Adding to 1011051050111 its reverse (1110501501101), we get a palindrome (2121552551212).

The spelling of 1011051050111 in words is "one trillion, eleven billion, fifty-one million, fifty thousand, one hundred eleven".