123200211402 has 24 divisors (see below), whose sum is σ = 266947751460. Its totient is φ = 41064589440.

The previous prime is 123200211359. The next prime is 123200211457. The reversal of 123200211402 is 204112002321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 105223033161 + 17977178241 = 324381^2 + 134079^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 in 11 ways as a sum of consecutive naturals, for example, 196002 + ... + 533682.

Almost surely, 2^123200211402 is an apocalyptic number.

123200211402 is an abundant number, since it is smaller than the sum of its proper divisors (143747540058).

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

123200211402 is a wasteful number, since it uses less digits than its factorization.

123200211402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357958 (or 357955 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 123200211402 its reverse (204112002321), we get a palindrome (327312213723).

The spelling of 123200211402 in words is "one hundred twenty-three billion, two hundred million, two hundred eleven thousand, four hundred two".