1123151356 has 12 divisors (see below), whose sum is σ = 1968800400. Its totient is φ = 560636960.

The previous prime is 1123151347. The next prime is 1123151363. The reversal of 1123151356 is 6531513211.

It is a super-2 number, since 2×1123151356² = 2522937936969277472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 231985 + ... + 236776.

It is an arithmetic number, because the mean of its divisors is an integer number (164066700).

Almost surely, 2^1123151356 is an apocalyptic number.

It is an amenable number.

1123151356 is a deficient number, since it is larger than the sum of its proper divisors (845649044).

1123151356 is a wasteful number, since it uses less digits than its factorization.

1123151356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469364 (or 469362 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 1123151356 is about 33513.4503744392. The cubic root of 1123151356 is about 1039.4719200190.

Adding to 1123151356 its reverse (6531513211), we get a palindrome (7654664567).

The spelling of 1123151356 in words is "one billion, one hundred twenty-three million, one hundred fifty-one thousand, three hundred fifty-six".