123354320450 has 12 divisors (see below), whose sum is σ = 229439036130. Its totient is φ = 49341728160.

The previous prime is 123354320399. The next prime is 123354320471. The reversal of 123354320450 is 54023453321.

It can be written as a sum of positive squares in 3 ways, for example, as 118259644321 + 5094676129 = 343889^2 + 71377^2 .

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 in 5 ways as a sum of consecutive naturals, for example, 1233543155 + ... + 1233543254.

Almost surely, 2^123354320450 is an apocalyptic number.

123354320450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123354320450 is a deficient number, since it is larger than the sum of its proper divisors (106084715680).

123354320450 is a wasteful number, since it uses less digits than its factorization.

123354320450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467086421 (or 2467086416 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 123354320450 its reverse (54023453321), we get a palindrome (177377773771).

The spelling of 123354320450 in words is "one hundred twenty-three billion, three hundred fifty-four million, three hundred twenty thousand, four hundred fifty".