123412432402 has 32 divisors (see below), whose sum is σ = 217422915840. Its totient is φ = 51428208960.

The previous prime is 123412432397. The next prime is 123412432463. The reversal of 123412432402 is 204234214321.

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 15 ways as a sum of consecutive naturals, for example, 731152 + ... + 883972.

It is an arithmetic number, because the mean of its divisors is an integer number (6794466120).

Almost surely, 2^123412432402 is an apocalyptic number.

123412432402 is a deficient number, since it is larger than the sum of its proper divisors (94010483438).

123412432402 is a wasteful number, since it uses less digits than its factorization.

123412432402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154426.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 123412432402 its reverse (204234214321), we get a palindrome (327646646723).

The spelling of 123412432402 in words is "one hundred twenty-three billion, four hundred twelve million, four hundred thirty-two thousand, four hundred two".