123030211021202 has 4 divisors (see below), whose sum is σ = 184545316531806. Its totient is φ = 61515105510600.

The previous prime is 123030211021171. The next prime is 123030211021219. The reversal of 123030211021202 is 202120112030321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70206953923681 + 52823257097521 = 8378959^2 + 7267961^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30757552755299 + ... + 30757552755302.

Almost surely, 2^{123030211021202} is an apocalyptic number.

123030211021202 is a deficient number, since it is larger than the sum of its proper divisors (61515105510604).

123030211021202 is an equidigital number, since it uses as much as digits as its factorization.

123030211021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61515105510603.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123030211021202 its reverse (202120112030321), we get a palindrome (325150323051523).

The spelling of 123030211021202 in words is "one hundred twenty-three trillion, thirty billion, two hundred eleven million, twenty-one thousand, two hundred two".