123533333400 has 48 divisors (see below), whose sum is σ = 382953335400. Its totient is φ = 32942222080.

The previous prime is 123533333387. The next prime is 123533333419. The reversal of 123533333400 is 4333335321.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 102943845 + ... + 102945044.

Almost surely, 2^123533333400 is an apocalyptic number.

123533333400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123533333400 is an abundant number, since it is smaller than the sum of its proper divisors (259420002000).

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

123533333400 is a wasteful number, since it uses less digits than its factorization.

123533333400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205888908 (or 205888899 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 30.

Adding to 123533333400 its reverse (4333335321), we get a palindrome (127866668721).

The spelling of 123533333400 in words is "one hundred twenty-three billion, five hundred thirty-three million, three hundred thirty-three thousand, four hundred".