4021010232123 has 4 divisors (see below), whose sum is σ = 5361346976168. Its totient is φ = 2680673488080.

The previous prime is 4021010232079. The next prime is 4021010232133. The reversal of 4021010232123 is 3212320101204.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4021010232123 - 2¹⁰ = 4021010231099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4021010232123.

It is not an unprimeable number, because it can be changed into a prime (4021010232133) 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, 670168372018 + ... + 670168372023.

It is an arithmetic number, because the mean of its divisors is an integer number (1340336744042).

Almost surely, 2^{4021010232123} is an apocalyptic number.

4021010232123 is a deficient number, since it is larger than the sum of its proper divisors (1340336744045).

4021010232123 is a wasteful number, since it uses less digits than its factorization.

4021010232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340336744044.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 4021010232123 its reverse (3212320101204), we get a palindrome (7233330333327).

The spelling of 4021010232123 in words is "four trillion, twenty-one billion, ten million, two hundred thirty-two thousand, one hundred twenty-three".