1055061001111 has 4 divisors (see below), whose sum is σ = 1136219539672. Its totient is φ = 973902462552.

The previous prime is 1055061001103. The next prime is 1055061001121. The reversal of 1055061001111 is 1111001605501.

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 1055061001111 - 2³ = 1055061001103 is a prime.

It is a super-3 number, since 3×1055061001111³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055061001121) 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, 40579269261 + ... + 40579269286.

It is an arithmetic number, because the mean of its divisors is an integer number (284054884918).

Almost surely, 2^{1055061001111} is an apocalyptic number.

1055061001111 is a deficient number, since it is larger than the sum of its proper divisors (81158538561).

1055061001111 is an equidigital number, since it uses as much as digits as its factorization.

1055061001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81158538560.

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

Adding to 1055061001111 its reverse (1111001605501), we get a palindrome (2166062606612).

The spelling of 1055061001111 in words is "one trillion, fifty-five billion, sixty-one million, one thousand, one hundred eleven".