123210101021 has 8 divisors (see below), whose sum is σ = 148222678080. Its totient is φ = 100050307488.

The previous prime is 123210100943. The next prime is 123210101057. The reversal of 123210101021 is 120101012321.

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 123210101021 - 2²² = 123205906717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123210100987 and 123210101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123210101621) 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, 463195736 + ... + 463196001.

It is an arithmetic number, because the mean of its divisors is an integer number (18527834760).

Almost surely, 2^123210101021 is an apocalyptic number.

It is an amenable number.

123210101021 is a deficient number, since it is larger than the sum of its proper divisors (25012577059).

123210101021 is an equidigital number, since it uses as much as digits as its factorization.

123210101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926391763.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 123210101021 its reverse (120101012321), we get a palindrome (243311113342).

The spelling of 123210101021 in words is "one hundred twenty-three billion, two hundred ten million, one hundred one thousand, twenty-one".