231302002009 has 16 divisors (see below), whose sum is σ = 261156599424. Its totient is φ = 203258563200.

The previous prime is 231302001991. The next prime is 231302002013. The reversal of 231302002009 is 900200203132.

It is a cyclic number.

It is not a de Polignac number, because 231302002009 - 2¹³ = 231301993817 is a prime.

It is a super-2 number, since 2×231302002009² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231302002109) 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, 1770052 + ... + 1896229.

It is an arithmetic number, because the mean of its divisors is an integer number (16322287464).

Almost surely, 2^231302002009 is an apocalyptic number.

It is an amenable number.

231302002009 is a deficient number, since it is larger than the sum of its proper divisors (29854597415).

231302002009 is a wasteful number, since it uses less digits than its factorization.

231302002009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666528.

The product of its (nonzero) digits is 648, while the sum is 22.

The spelling of 231302002009 in words is "two hundred thirty-one billion, three hundred two million, two thousand, nine".