1200645323 has 2 divisors, whose sum is σ = 1200645324. Its totient is φ = 1200645322.

The previous prime is 1200645319. The next prime is 1200645337. The reversal of 1200645323 is 3235460021.

It is a weak prime.

It is an emirp because it is prime and its reverse (3235460021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200645323 - 2² = 1200645319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200645292 and 1200645301.

It is not a weakly prime, because it can be changed into another prime (1200645223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600322661 + 600322662.

It is an arithmetic number, because the mean of its divisors is an integer number (600322662).

Almost surely, 2^1200645323 is an apocalyptic number.

1200645323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200645323 is an equidigital number, since it uses as much as digits as its factorization.

1200645323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1200645323 is about 34650.3293346542. The cubic root of 1200645323 is about 1062.8490233843.

The spelling of 1200645323 in words is "one billion, two hundred million, six hundred forty-five thousand, three hundred twenty-three".