1204025123 has 4 divisors (see below), whose sum is σ = 1376028720. Its totient is φ = 1032021528.

The previous prime is 1204025113. The next prime is 1204025129. The reversal of 1204025123 is 3215204021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3215204021 = 16691 ⋅192631.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204025123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204025095 and 1204025104.

It is not an unprimeable number, because it can be changed into a prime (1204025129) 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, 86001788 + ... + 86001801.

It is an arithmetic number, because the mean of its divisors is an integer number (344007180).

Almost surely, 2^1204025123 is an apocalyptic number.

1204025123 is a deficient number, since it is larger than the sum of its proper divisors (172003597).

1204025123 is an equidigital number, since it uses as much as digits as its factorization.

1204025123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172003596.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1204025123 is about 34699.0651603181. The cubic root of 1204025123 is about 1063.8453908214.

Adding to 1204025123 its reverse (3215204021), we get a palindrome (4419229144).

The spelling of 1204025123 in words is "one billion, two hundred four million, twenty-five thousand, one hundred twenty-three".