123434313402 has 32 divisors (see below), whose sum is σ = 247859269632. Its totient is φ = 40979974464.

The previous prime is 123434313391. The next prime is 123434313419. The reversal of 123434313402 is 204313434321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123434313402.

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, 1574343 + ... + 1650885.

It is an arithmetic number, because the mean of its divisors is an integer number (7745602176).

Almost surely, 2^123434313402 is an apocalyptic number.

123434313402 is an abundant number, since it is smaller than the sum of its proper divisors (124424956230).

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

123434313402 is a wasteful number, since it uses less digits than its factorization.

123434313402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77622.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 123434313402 its reverse (204313434321), we get a palindrome (327747747723).

The spelling of 123434313402 in words is "one hundred twenty-three billion, four hundred thirty-four million, three hundred thirteen thousand, four hundred two".