1061005051111 has 4 divisors (see below), whose sum is σ = 1061229797424. Its totient is φ = 1060780304800.

The previous prime is 1061005051063. The next prime is 1061005051123. The reversal of 1061005051111 is 1111505001601.

1061005051111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1061005051111 - 2⁷ = 1061005050983 is a prime.

It is a super-2 number, since 2×1061005051111² (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 (1061005052111) 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, 112366075 + ... + 112375516.

It is an arithmetic number, because the mean of its divisors is an integer number (265307449356).

Almost surely, 2^{1061005051111} is an apocalyptic number.

1061005051111 is a deficient number, since it is larger than the sum of its proper divisors (224746313).

1061005051111 is an equidigital number, since it uses as much as digits as its factorization.

1061005051111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224746312.

The product of its (nonzero) digits is 150, while the sum is 22.

The spelling of 1061005051111 in words is "one trillion, sixty-one billion, five million, fifty-one thousand, one hundred eleven".