123030021202 has 16 divisors (see below), whose sum is σ = 201345494400. Its totient is φ = 55916169840.

The previous prime is 123030021199. The next prime is 123030021251. The reversal of 123030021202 is 202120030321.

It is a super-2 number, since 2×123030021202² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134202 + ... + 513877.

It is an arithmetic number, because the mean of its divisors is an integer number (12584093400).

Almost surely, 2^123030021202 is an apocalyptic number.

123030021202 is a deficient number, since it is larger than the sum of its proper divisors (78315473198).

123030021202 is a wasteful number, since it uses less digits than its factorization.

123030021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656721.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 123030021202 its reverse (202120030321), we get a palindrome (325150051523).

The spelling of 123030021202 in words is "one hundred twenty-three billion, thirty million, twenty-one thousand, two hundred two".