1055133111 has 4 divisors (see below), whose sum is σ = 1406844152. Its totient is φ = 703422072.

The previous prime is 1055133083. The next prime is 1055133139. The reversal of 1055133111 is 1113315501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1113315501 = 3 ⋅371105167.

It is an interprime number because it is at equal distance from previous prime (1055133083) and next prime (1055133139).

It is not a de Polignac number, because 1055133111 - 2⁷ = 1055132983 is a prime.

It is a super-2 number, since 2×1055133111² = 2226611763857076642, which 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 (1055133151) 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, 175855516 + ... + 175855521.

It is an arithmetic number, because the mean of its divisors is an integer number (351711038).

Almost surely, 2^1055133111 is an apocalyptic number.

1055133111 is a deficient number, since it is larger than the sum of its proper divisors (351711041).

1055133111 is an equidigital number, since it uses as much as digits as its factorization.

1055133111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351711040.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 1055133111 is about 32482.8125475612. The cubic root of 1055133111 is about 1018.0499429980.

Adding to 1055133111 its reverse (1113315501), we get a palindrome (2168448612).

The spelling of 1055133111 in words is "one billion, fifty-five million, one hundred thirty-three thousand, one hundred eleven".