10312102009 has 16 divisors (see below), whose sum is σ = 11883559680. Its totient is φ = 8849802960.

The previous prime is 10312102001. The next prime is 10312102013. The reversal of 10312102009 is 90020121301.

It is a cyclic number.

It is not a de Polignac number, because 10312102009 - 2³ = 10312102001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10312102001) 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, 28027 + ... + 146320.

It is an arithmetic number, because the mean of its divisors is an integer number (742722480).

Almost surely, 2^10312102009 is an apocalyptic number.

10312102009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10312102009 is a deficient number, since it is larger than the sum of its proper divisors (1571457671).

10312102009 is a wasteful number, since it uses less digits than its factorization.

10312102009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174660.

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 10312102009 in words is "ten billion, three hundred twelve million, one hundred two thousand, nine".