10645260042123 has 40 divisors (see below), whose sum is σ = 18800605248480. Its totient is φ = 5873246910720.

The previous prime is 10645260042121. The next prime is 10645260042139. The reversal of 10645260042123 is 32124006254601.

10645260042123 is a `hidden beast` number, since 1 + 0 + 6 + 4 + 5 + 2 + 600 + 4 + 21 + 23 = 666.

It is not a de Polignac number, because 10645260042123 - 2¹ = 10645260042121 is a prime.

It is a super-2 number, since 2×10645260042123² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10645260042121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 323685438 + ... + 323718323.

It is an arithmetic number, because the mean of its divisors is an integer number (470015131212).

Almost surely, 2^{10645260042123} is an apocalyptic number.

10645260042123 is a deficient number, since it is larger than the sum of its proper divisors (8155345206357).

10645260042123 is an equidigital number, since it uses as much as digits as its factorization.

10645260042123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647403809 (or 647403800 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 10645260042123 its reverse (32124006254601), we get a palindrome (42769266296724).

The spelling of 10645260042123 in words is "ten trillion, six hundred forty-five billion, two hundred sixty million, forty-two thousand, one hundred twenty-three".