1121053155 has 16 divisors (see below), whose sum is σ = 1851546624. Its totient is φ = 578607840.

The previous prime is 1121053111. The next prime is 1121053163. The reversal of 1121053155 is 5513501211.

1121053155 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1121053155 - 2⁶ = 1121053091 is a prime.

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, 1204969 + ... + 1205898.

It is an arithmetic number, because the mean of its divisors is an integer number (115721664).

Almost surely, 2^1121053155 is an apocalyptic number.

1121053155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1121053155 is a deficient number, since it is larger than the sum of its proper divisors (730493469).

1121053155 is a wasteful number, since it uses less digits than its factorization.

1121053155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410906.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1121053155 is about 33482.1318765696. The cubic root of 1121053155 is about 1038.8242244166.

Adding to 1121053155 its reverse (5513501211), we get a palindrome (6634554366).

The spelling of 1121053155 in words is "one billion, one hundred twenty-one million, fifty-three thousand, one hundred fifty-five".