1011055551011 has 8 divisors (see below), whose sum is σ = 1132779684144. Its totient is φ = 894299749920.

The previous prime is 1011055550987. The next prime is 1011055551019. The reversal of 1011055551011 is 1101555501101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011055551011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011055551019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242082580 + ... + 1242083393.

It is an arithmetic number, because the mean of its divisors is an integer number (141597460518).

Almost surely, 2^{1011055551011} is an apocalyptic number.

1011055551011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1011055551011 is a deficient number, since it is larger than the sum of its proper divisors (121724133133).

1011055551011 is a wasteful number, since it uses less digits than its factorization.

1011055551011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484166021.

The product of its (nonzero) digits is 625, while the sum is 26.

The spelling of 1011055551011 in words is "one trillion, eleven billion, fifty-five million, five hundred fifty-one thousand, eleven".