1123203097 has 2 divisors, whose sum is σ = 1123203098. Its totient is φ = 1123203096.

The previous prime is 1123203023. The next prime is 1123203127. The reversal of 1123203097 is 7903023211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 919969561 + 203233536 = 30331^2 + 14256^2 .

It is an emirp because it is prime and its reverse (7903023211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123203097 is a prime.

It is a super-2 number, since 2×1123203097² = 2523170394220782818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123203197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561601548 + 561601549.

It is an arithmetic number, because the mean of its divisors is an integer number (561601549).

Almost surely, 2^1123203097 is an apocalyptic number.

It is an amenable number.

1123203097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123203097 is an equidigital number, since it uses as much as digits as its factorization.

1123203097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1123203097 is about 33514.2223093420. Note that the first 3 decimals coincide. The cubic root of 1123203097 is about 1039.4878818008.

The spelling of 1123203097 in words is "one billion, one hundred twenty-three million, two hundred three thousand, ninety-seven".