1200017838907 has 2 divisors, whose sum is σ = 1200017838908. Its totient is φ = 1200017838906.

The previous prime is 1200017838827. The next prime is 1200017838911. The reversal of 1200017838907 is 7098387100021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200017838907 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200017838917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600008919453 + 600008919454.

It is an arithmetic number, because the mean of its divisors is an integer number (600008919454).

Almost surely, 2^{1200017838907} is an apocalyptic number.

1200017838907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200017838907 is an equidigital number, since it uses as much as digits as its factorization.

1200017838907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 46.

The spelling of 1200017838907 in words is "one trillion, two hundred billion, seventeen million, eight hundred thirty-eight thousand, nine hundred seven".