1200012758983 has 2 divisors, whose sum is σ = 1200012758984. Its totient is φ = 1200012758982.

The previous prime is 1200012758981. The next prime is 1200012758999. The reversal of 1200012758983 is 3898572100021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200012758983 - 2¹ = 1200012758981 is a prime.

Together with 1200012758981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200012758981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600006379491 + 600006379492.

It is an arithmetic number, because the mean of its divisors is an integer number (600006379492).

Almost surely, 2^{1200012758983} is an apocalyptic number.

1200012758983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200012758983 is an equidigital number, since it uses as much as digits as its factorization.

1200012758983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 1200012758983 in words is "one trillion, two hundred billion, twelve million, seven hundred fifty-eight thousand, nine hundred eighty-three".