123441102021 has 4 divisors (see below), whose sum is σ = 164588136032. Its totient is φ = 82294068012.

The previous prime is 123441101999. The next prime is 123441102053. The reversal of 123441102021 is 120201144321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 123441102021 - 2⁷ = 123441101893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123441102121) 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, 20573517001 + ... + 20573517006.

It is an arithmetic number, because the mean of its divisors is an integer number (41147034008).

Almost surely, 2^123441102021 is an apocalyptic number.

It is an amenable number.

123441102021 is a deficient number, since it is larger than the sum of its proper divisors (41147034011).

123441102021 is an equidigital number, since it uses as much as digits as its factorization.

123441102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41147034010.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 123441102021 its reverse (120201144321), we get a palindrome (243642246342).

The spelling of 123441102021 in words is "one hundred twenty-three billion, four hundred forty-one million, one hundred two thousand, twenty-one".