1200538308049 has 2 divisors, whose sum is σ = 1200538308050. Its totient is φ = 1200538308048.

The previous prime is 1200538308023. The next prime is 1200538308113. The reversal of 1200538308049 is 9408038350021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184490485649 + 16047822400 = 1088343^2 + 126680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200538308049 - 2³³ = 1191948373457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200538307996 and 1200538308014.

It is not a weakly prime, because it can be changed into another prime (1200538308019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600269154024 + 600269154025.

It is an arithmetic number, because the mean of its divisors is an integer number (600269154025).

Almost surely, 2^{1200538308049} is an apocalyptic number.

It is an amenable number.

1200538308049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200538308049 is an equidigital number, since it uses as much as digits as its factorization.

1200538308049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 1200538308049 in words is "one trillion, two hundred billion, five hundred thirty-eight million, three hundred eight thousand, forty-nine".