12323121002 has 16 divisors (see below), whose sum is σ = 18540937800. Its totient is φ = 6142832640.

The previous prime is 12323120983. The next prime is 12323121067. The reversal of 12323121002 is 20012132321.

It can be written as a sum of positive squares in 4 ways, for example, as 8498811721 + 3824309281 = 92189^2 + 61841^2 .

It is a super-2 number, since 2×12323121002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183274 + ... + 1193642.

Almost surely, 2^12323121002 is an apocalyptic number.

12323121002 is a deficient number, since it is larger than the sum of its proper divisors (6217816798).

12323121002 is a wasteful number, since it uses less digits than its factorization.

12323121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12323121002 its reverse (20012132321), we get a palindrome (32335253323).

The spelling of 12323121002 in words is "twelve billion, three hundred twenty-three million, one hundred twenty-one thousand, two".