123343433400 has 96 divisors (see below), whose sum is σ = 417125088000. Its totient is φ = 29901436800.

The previous prime is 123343433387. The next prime is 123343433431. The reversal of 123343433400 is 4334343321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9337600 + ... + 9350799.

It is an arithmetic number, because the mean of its divisors is an integer number (4345053000).

Almost surely, 2^123343433400 is an apocalyptic number.

123343433400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123343433400 is an abundant number, since it is smaller than the sum of its proper divisors (293781654600).

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

123343433400 is a wasteful number, since it uses less digits than its factorization.

123343433400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18688429 (or 18688420 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 123343433400 its reverse (4334343321), we get a palindrome (127677776721).

The spelling of 123343433400 in words is "one hundred twenty-three billion, three hundred forty-three million, four hundred thirty-three thousand, four hundred".