1055311211 has 4 divisors (see below), whose sum is σ = 1055475624. Its totient is φ = 1055146800.

The previous prime is 1055311183. The next prime is 1055311223. The reversal of 1055311211 is 1121135501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1121135501 = 3673 ⋅305237.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055311211 is a prime.

It is a super-2 number, since 2×1055311211² = 2227363504124573042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055311511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72170 + ... + 85551.

It is an arithmetic number, because the mean of its divisors is an integer number (263868906).

Almost surely, 2^1055311211 is an apocalyptic number.

1055311211 is a deficient number, since it is larger than the sum of its proper divisors (164413).

1055311211 is an equidigital number, since it uses as much as digits as its factorization.

1055311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164412.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1055311211 is about 32485.5538816872. The cubic root of 1055311211 is about 1018.1072199716.

Adding to 1055311211 its reverse (1121135501), we get a palindrome (2176446712).

The spelling of 1055311211 in words is "one billion, fifty-five million, three hundred eleven thousand, two hundred eleven".