123302421202 has 4 divisors (see below), whose sum is σ = 184953631806. Its totient is φ = 61651210600.

The previous prime is 123302421163. The next prime is 123302421211. The reversal of 123302421202 is 202124203321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202124203321 = 31 ⋅6520135591.

It can be written as a sum of positive squares in only one way, i.e., 117106999681 + 6195421521 = 342209^2 + 78711^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30825605299 + ... + 30825605302.

Almost surely, 2^123302421202 is an apocalyptic number.

123302421202 is a deficient number, since it is larger than the sum of its proper divisors (61651210604).

123302421202 is an equidigital number, since it uses as much as digits as its factorization.

123302421202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61651210603.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 123302421202 its reverse (202124203321), we get a palindrome (325426624523).

The spelling of 123302421202 in words is "one hundred twenty-three billion, three hundred two million, four hundred twenty-one thousand, two hundred two".