425040203123 has 4 divisors (see below), whose sum is σ = 425043195360. Its totient is φ = 425037210888.

The previous prime is 425040203089. The next prime is 425040203179. The reversal of 425040203123 is 321302040524.

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 425040203123 - 2⁶ = 425040203059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425040203092 and 425040203101.

It is not an unprimeable number, because it can be changed into a prime (425040205123) 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, 1271840 + ... + 1570877.

It is an arithmetic number, because the mean of its divisors is an integer number (106260798840).

Almost surely, 2^425040203123 is an apocalyptic number.

425040203123 is a deficient number, since it is larger than the sum of its proper divisors (2992237).

425040203123 is a wasteful number, since it uses less digits than its factorization.

425040203123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992236.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 425040203123 its reverse (321302040524), we get a palindrome (746342243647).

The spelling of 425040203123 in words is "four hundred twenty-five billion, forty million, two hundred three thousand, one hundred twenty-three".