1123021097 has 16 divisors (see below), whose sum is σ = 1266376704. Its totient is φ = 986634000.

The previous prime is 1123021093. The next prime is 1123021111. The reversal of 1123021097 is 7901203211.

It is not a de Polignac number, because 1123021097 - 2² = 1123021093 is a prime.

It is a super-2 number, since 2×1123021097² = 2522352768614166818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123021093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307472 + ... + 311102.

It is an arithmetic number, because the mean of its divisors is an integer number (79148544).

Almost surely, 2^1123021097 is an apocalyptic number.

It is an amenable number.

1123021097 is a deficient number, since it is larger than the sum of its proper divisors (143355607).

1123021097 is a wasteful number, since it uses less digits than its factorization.

1123021097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1123021097 is about 33511.5069341861. The cubic root of 1123021097 is about 1039.4317337441.

The spelling of 1123021097 in words is "one billion, one hundred twenty-three million, twenty-one thousand, ninety-seven".