123021010002 has 48 divisors (see below), whose sum is σ = 273120696576. Its totient is φ = 36909972000.

The previous prime is 123021010001. The next prime is 123021010033. The reversal of 123021010002 is 200010120321.

It is a self number, because there is not a number n which added to its sum of digits gives 123021010002.

It is not an unprimeable number, because it can be changed into a prime (123021010001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 765538 + ... + 912189.

It is an arithmetic number, because the mean of its divisors is an integer number (5690014512).

Almost surely, 2^123021010002 is an apocalyptic number.

123021010002 is an abundant number, since it is smaller than the sum of its proper divisors (150099686574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123021010002 is a wasteful number, since it uses less digits than its factorization.

123021010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677855 (or 1677844 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 123021010002 its reverse (200010120321), we get a palindrome (323031130323).

The spelling of 123021010002 in words is "one hundred twenty-three billion, twenty-one million, ten thousand, two".