1203817395009 has 16 divisors (see below), whose sum is σ = 1621571768064. Its totient is φ = 794309760000.

The previous prime is 1203817395007. The next prime is 1203817395023. The reversal of 1203817395009 is 9005937183021.

It is not a de Polignac number, because 1203817395009 - 2¹ = 1203817395007 is a prime.

It is a super-2 number, since 2×1203817395009² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1203817395007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112584 + ... + 1555734.

It is an arithmetic number, because the mean of its divisors is an integer number (101348235504).

Almost surely, 2^{1203817395009} is an apocalyptic number.

It is an amenable number.

1203817395009 is a deficient number, since it is larger than the sum of its proper divisors (417754373055).

1203817395009 is a wasteful number, since it uses less digits than its factorization.

1203817395009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446008.

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 1203817395009 in words is "one trillion, two hundred three billion, eight hundred seventeen million, three hundred ninety-five thousand, nine".