123213320202 has 16 divisors (see below), whose sum is σ = 281630446272. Its totient is φ = 35203805760.

The previous prime is 123213320179. The next prime is 123213320207. The reversal of 123213320202 is 202023312321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (123213320207) 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, 1466825199 + ... + 1466825282.

It is an arithmetic number, because the mean of its divisors is an integer number (17601902892).

Almost surely, 2^123213320202 is an apocalyptic number.

123213320202 is an abundant number, since it is smaller than the sum of its proper divisors (158417126070).

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

123213320202 is a wasteful number, since it uses less digits than its factorization.

123213320202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933650493.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123213320202 its reverse (202023312321), we get a palindrome (325236632523).

The spelling of 123213320202 in words is "one hundred twenty-three billion, two hundred thirteen million, three hundred twenty thousand, two hundred two".