1248206320009 has 16 divisors (see below), whose sum is σ = 1441813849920. Its totient is φ = 1067957775360.

The previous prime is 1248206320007. The next prime is 1248206320091. The reversal of 1248206320009 is 9000236028421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1248206320009 - 2¹ = 1248206320007 is a prime.

It is a super-2 number, since 2×1248206320009² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1248206320009.

It is not an unprimeable number, because it can be changed into a prime (1248206320001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13967182 + ... + 14056264.

It is an arithmetic number, because the mean of its divisors is an integer number (90113365620).

Almost surely, 2^{1248206320009} is an apocalyptic number.

It is an amenable number.

1248206320009 is a deficient number, since it is larger than the sum of its proper divisors (193607529911).

1248206320009 is a wasteful number, since it uses less digits than its factorization.

1248206320009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164040.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 1248206320009 in words is "one trillion, two hundred forty-eight billion, two hundred six million, three hundred twenty thousand, nine".