1123202987 has 2 divisors, whose sum is σ = 1123202988. Its totient is φ = 1123202986.

The previous prime is 1123202933. The next prime is 1123203013. The reversal of 1123202987 is 7892023211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123202987 - 2⁶ = 1123202923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123202887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561601493 + 561601494.

It is an arithmetic number, because the mean of its divisors is an integer number (561601494).

Almost surely, 2^1123202987 is an apocalyptic number.

1123202987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123202987 is an equidigital number, since it uses as much as digits as its factorization.

1123202987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1123202987 is about 33514.2206682477. The cubic root of 1123202987 is about 1039.4878478670.

The spelling of 1123202987 in words is "one billion, one hundred twenty-three million, two hundred two thousand, nine hundred eighty-seven".