10662123213 has 24 divisors (see below), whose sum is σ = 17605130816. Its totient is φ = 6091200000.

The previous prime is 10662123211. The next prime is 10662123247. The reversal of 10662123213 is 31232126601.

10662123213 is a `hidden beast` number, since 1 + 0 + 6 + 621 + 2 + 32 + 1 + 3 = 666.

It is not a de Polignac number, because 10662123213 - 2¹ = 10662123211 is a prime.

It is a super-2 number, since 2×10662123213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10662123211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284838 + ... + 320088.

Almost surely, 2^10662123213 is an apocalyptic number.

It is an amenable number.

10662123213 is a deficient number, since it is larger than the sum of its proper divisors (6943007603).

10662123213 is a wasteful number, since it uses less digits than its factorization.

10662123213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40065 (or 40062 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 10662123213 its reverse (31232126601), we get a palindrome (41894249814).

The spelling of 10662123213 in words is "ten billion, six hundred sixty-two million, one hundred twenty-three thousand, two hundred thirteen".