1123153220817 has 6 divisors (see below), whose sum is σ = 1622332430082. Its totient is φ = 748768813872.

The previous prime is 1123153220797. The next prime is 1123153220851. The reversal of 1123153220817 is 7180223513211.

1123153220817 is a `hidden beast` number, since 1 + 1 + 2 + 315 + 322 + 0 + 8 + 17 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1119118557456 + 4034663361 = 1057884^2 + 63519^2 .

It is not a de Polignac number, because 1123153220817 - 2¹² = 1123153216721 is a prime.

It is a super-2 number, since 2×1123153220817² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123153220867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62397401148 + ... + 62397401165.

It is an arithmetic number, because the mean of its divisors is an integer number (270388738347).

Almost surely, 2^{1123153220817} is an apocalyptic number.

It is an amenable number.

1123153220817 is a deficient number, since it is larger than the sum of its proper divisors (499179209265).

1123153220817 is a wasteful number, since it uses less digits than its factorization.

1123153220817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124794802319 (or 124794802316 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 1123153220817 in words is "one trillion, one hundred twenty-three billion, one hundred fifty-three million, two hundred twenty thousand, eight hundred seventeen".