1061105510111 has 16 divisors (see below), whose sum is σ = 1136794022784. Its totient is φ = 986922123264.

The previous prime is 1061105510089. The next prime is 1061105510141. The reversal of 1061105510111 is 1110155011601.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1061105510111 is a prime.

It is a super-2 number, since 2×1061105510111² (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 (1061105510141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631706 + ... + 1587848.

It is an arithmetic number, because the mean of its divisors is an integer number (71049626424).

Almost surely, 2^{1061105510111} is an apocalyptic number.

1061105510111 is a deficient number, since it is larger than the sum of its proper divisors (75688512673).

1061105510111 is an equidigital number, since it uses as much as digits as its factorization.

1061105510111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956930.

The product of its (nonzero) digits is 150, while the sum is 23.

The spelling of 1061105510111 in words is "one trillion, sixty-one billion, one hundred five million, five hundred ten thousand, one hundred eleven".