123444300421 has 8 divisors (see below), whose sum is σ = 133367480064. Its totient is φ = 113582187120.

The previous prime is 123444300407. The next prime is 123444300437. The reversal of 123444300421 is 124003444321.

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

It is a cyclic number.

It is not a de Polignac number, because 123444300421 - 2²⁵ = 123410745989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123444300421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123444300401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15262381 + ... + 15270466.

It is an arithmetic number, because the mean of its divisors is an integer number (16670935008).

Almost surely, 2^123444300421 is an apocalyptic number.

It is an amenable number.

123444300421 is a deficient number, since it is larger than the sum of its proper divisors (9923179643).

123444300421 is a wasteful number, since it uses less digits than its factorization.

123444300421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30533171.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 123444300421 its reverse (124003444321), we get a palindrome (247447744742).

The spelling of 123444300421 in words is "one hundred twenty-three billion, four hundred forty-four million, three hundred thousand, four hundred twenty-one".