2421043020123 has 64 divisors (see below), whose sum is σ = 4054761446400. Its totient is φ = 1276817520384.

The previous prime is 2421043020061. The next prime is 2421043020173. The reversal of 2421043020123 is 3210203401242.

It is a happy number.

It is not a de Polignac number, because 2421043020123 - 2¹⁰ = 2421043019099 is a prime.

It is a super-2 number, since 2×2421043020123² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2421043020093 and 2421043020102.

It is not an unprimeable number, because it can be changed into a prime (2421043020173) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106911040 + ... + 106933682.

It is an arithmetic number, because the mean of its divisors is an integer number (63355647600).

Almost surely, 2^{2421043020123} is an apocalyptic number.

2421043020123 is a deficient number, since it is larger than the sum of its proper divisors (1633718426277).

2421043020123 is a wasteful number, since it uses less digits than its factorization.

2421043020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30673 (or 30659 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2421043020123 its reverse (3210203401242), we get a palindrome (5631246421365).

The spelling of 2421043020123 in words is "two trillion, four hundred twenty-one billion, forty-three million, twenty thousand, one hundred twenty-three".