10662421243 has 4 divisors (see below), whose sum is σ = 10694634328. Its totient is φ = 10630208160.

The previous prime is 10662421223. The next prime is 10662421261. The reversal of 10662421243 is 34212426601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34212426601 = 15263 ⋅2241527.

It is a cyclic number.

It is not a de Polignac number, because 10662421243 - 2⁹ = 10662420731 is a prime.

It is a super-2 number, since 2×10662421243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10662421223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16106046 + ... + 16106707.

It is an arithmetic number, because the mean of its divisors is an integer number (2673658582).

Almost surely, 2^10662421243 is an apocalyptic number.

10662421243 is a deficient number, since it is larger than the sum of its proper divisors (32213085).

10662421243 is an equidigital number, since it uses as much as digits as its factorization.

10662421243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32213084.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 10662421243 its reverse (34212426601), we get a palindrome (44874847844).

The spelling of 10662421243 in words is "ten billion, six hundred sixty-two million, four hundred twenty-one thousand, two hundred forty-three".