11020120255 has 8 divisors (see below), whose sum is σ = 13224812832. Its totient is φ = 8815650528.

The previous prime is 11020120253. The next prime is 11020120283. The reversal of 11020120255 is 55202102011.

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

It is a cyclic number.

It is not a de Polignac number, because 11020120255 - 2¹ = 11020120253 is a prime.

It is a super-2 number, since 2×11020120255² (a number of 21 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 (11020120253) 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, 85734 + ... + 171436.

It is an arithmetic number, because the mean of its divisors is an integer number (1653101604).

Almost surely, 2^11020120255 is an apocalyptic number.

11020120255 is a deficient number, since it is larger than the sum of its proper divisors (2204692577).

11020120255 is an equidigital number, since it uses as much as digits as its factorization.

11020120255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111425.

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 11020120255 its reverse (55202102011), we get a palindrome (66222222266).

The spelling of 11020120255 in words is "eleven billion, twenty million, one hundred twenty thousand, two hundred fifty-five".