23213002312 has 8 divisors (see below), whose sum is σ = 43524379350. Its totient is φ = 11606501152.

The previous prime is 23213002279. The next prime is 23213002409. The reversal of 23213002312 is 21320031232.

It can be written as a sum of positive squares in only one way, i.e., 18672129316 + 4540872996 = 136646^2 + 67386^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 23213002312.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1450812637 + ... + 1450812652.

Almost surely, 2^23213002312 is an apocalyptic number.

It is an amenable number.

23213002312 is a deficient number, since it is larger than the sum of its proper divisors (20311377038).

23213002312 is a wasteful number, since it uses less digits than its factorization.

23213002312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901625295 (or 2901625291 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23213002312 its reverse (21320031232), we get a palindrome (44533033544).

The spelling of 23213002312 in words is "twenty-three billion, two hundred thirteen million, two thousand, three hundred twelve".