123463036003440 has 320 divisors, whose sum is σ = 437867855235072. Its totient is φ = 28190719180800.

The previous prime is 123463036003393. The next prime is 123463036003513. The reversal of 123463036003440 is 44300630364321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11613486925 + ... + 11613497555.

Almost surely, 2^{123463036003440} is an apocalyptic number.

123463036003440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123463036003440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218933927617536).

123463036003440 is an abundant number, since it is smaller than the sum of its proper divisors (314404819231632).

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

123463036003440 is a wasteful number, since it uses less digits than its factorization.

123463036003440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17208 (or 17202 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 39.

Adding to 123463036003440 its reverse (44300630364321), we get a palindrome (167763666367761).

The spelling of 123463036003440 in words is "one hundred twenty-three trillion, four hundred sixty-three billion, thirty-six million, three thousand, four hundred forty".