10202243009 has 48 divisors (see below), whose sum is σ = 12599608320. Its totient is φ = 8220310560.

The previous prime is 10202242993. The next prime is 10202243017. The reversal of 10202243009 is 90034220201.

It is not a de Polignac number, because 10202243009 - 2⁴ = 10202242993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202243039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20778254 + ... + 20778744.

It is an arithmetic number, because the mean of its divisors is an integer number (262491840).

Almost surely, 2^10202243009 is an apocalyptic number.

It is an amenable number.

10202243009 is a deficient number, since it is larger than the sum of its proper divisors (2397365311).

10202243009 is a wasteful number, since it uses less digits than its factorization.

10202243009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 10202243009 in words is "ten billion, two hundred two million, two hundred forty-three thousand, nine".