123021454426 has 8 divisors (see below), whose sum is σ = 198726964884. Its totient is φ = 56779132800.

The previous prime is 123021454417. The next prime is 123021454427. The reversal of 123021454426 is 624454120321.

It can be written as a sum of positive squares in 2 ways, for example, as 90405455625 + 32615998801 = 300675^2 + 180599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 123021454391 and 123021454400.

It is not an unprimeable number, because it can be changed into a prime (123021454427) 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, 2365797175 + ... + 2365797226.

Almost surely, 2^123021454426 is an apocalyptic number.

123021454426 is a deficient number, since it is larger than the sum of its proper divisors (75705510458).

123021454426 is a wasteful number, since it uses less digits than its factorization.

123021454426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731594416.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 123021454426 its reverse (624454120321), we get a palindrome (747475574747).

The spelling of 123021454426 in words is "one hundred twenty-three billion, twenty-one million, four hundred fifty-four thousand, four hundred twenty-six".