1051121055 has 16 divisors (see below), whose sum is σ = 1683763200. Its totient is φ = 559941408.

The previous prime is 1051121009. The next prime is 1051121081. The reversal of 1051121055 is 5501211501.

It is not a de Polignac number, because 1051121055 - 2¹⁶ = 1051055519 is a prime.

It is a super-2 number, since 2×1051121055² = 2209710944528626050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27655 + ... + 53544.

It is an arithmetic number, because the mean of its divisors is an integer number (105235200).

Almost surely, 2^1051121055 is an apocalyptic number.

1051121055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1051121055 is a deficient number, since it is larger than the sum of its proper divisors (632642145).

1051121055 is an equidigital number, since it uses as much as digits as its factorization.

1051121055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82070.

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 1051121055 is about 32420.9971314887. The cubic root of 1051121055 is about 1016.7579539398.

Adding to 1051121055 its reverse (5501211501), we get a palindrome (6552332556).

The spelling of 1051121055 in words is "one billion, fifty-one million, one hundred twenty-one thousand, fifty-five".