4020025123 has 4 divisors (see below), whose sum is σ = 4194808848. Its totient is φ = 3845241400.

The previous prime is 4020025117. The next prime is 4020025127. The reversal of 4020025123 is 3215200204.

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

It is a cyclic number.

It is not a de Polignac number, because 4020025123 - 2⁵ = 4020025091 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 4020025123.

It is not an unprimeable number, because it can be changed into a prime (4020025127) 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, 87391828 + ... + 87391873.

It is an arithmetic number, because the mean of its divisors is an integer number (1048702212).

Almost surely, 2^4020025123 is an apocalyptic number.

4020025123 is a deficient number, since it is larger than the sum of its proper divisors (174783725).

4020025123 is a wasteful number, since it uses less digits than its factorization.

4020025123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174783724.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4020025123 is about 63403.6680563514. The cubic root of 4020025123 is about 1590.0456354662.

Adding to 4020025123 its reverse (3215200204), we get a palindrome (7235225327).

The spelling of 4020025123 in words is "four billion, twenty million, twenty-five thousand, one hundred twenty-three".