1121342355 has 48 divisors (see below), whose sum is σ = 2352003264. Its totient is φ = 482457600.

The previous prime is 1121342311. The next prime is 1121342381. The reversal of 1121342355 is 5532431211.

It is not a de Polignac number, because 1121342355 - 2⁶ = 1121342291 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99346 + ... + 110055.

It is an arithmetic number, because the mean of its divisors is an integer number (49000068).

Almost surely, 2^1121342355 is an apocalyptic number.

1121342355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1121342355 is an abundant number, since it is smaller than the sum of its proper divisors (1230660909).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121342355 is a wasteful number, since it uses less digits than its factorization.

1121342355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209436 (or 209433 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1121342355 is about 33486.4503194949. The cubic root of 1121342355 is about 1038.9135458236.

Adding to 1121342355 its reverse (5532431211), we get a palindrome (6653773566).

The spelling of 1121342355 in words is "one billion, one hundred twenty-one million, three hundred forty-two thousand, three hundred fifty-five".