123430002144 has 48 divisors (see below), whose sum is σ = 324472821120. Its totient is φ = 41083770240.

The previous prime is 123430002127. The next prime is 123430002161. The reversal of 123430002144 is 441200034321.

It is an interprime number because it is at equal distance from previous prime (123430002127) and next prime (123430002161).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864004 + ... + 996675.

It is an arithmetic number, because the mean of its divisors is an integer number (6759850440).

Almost surely, 2^123430002144 is an apocalyptic number.

It is an amenable number.

123430002144 is an abundant number, since it is smaller than the sum of its proper divisors (201042818976).

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

123430002144 is a wasteful number, since it uses less digits than its factorization.

123430002144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861383 (or 1861375 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 123430002144 its reverse (441200034321), we get a palindrome (564630036465).

The spelling of 123430002144 in words is "one hundred twenty-three billion, four hundred thirty million, two thousand, one hundred forty-four".