123313133400 has 96 divisors (see below), whose sum is σ = 391594467600. Its totient is φ = 32081459200.

The previous prime is 123313133389. The next prime is 123313133407. The reversal of 123313133400 is 4331313321.

It is a happy number.

It is a super-2 number, since 2×123313133400² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123313133407) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2481765 + ... + 2530964.

Almost surely, 2^123313133400 is an apocalyptic number.

123313133400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123313133400 is an abundant number, since it is smaller than the sum of its proper divisors (268281334200).

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

123313133400 is a wasteful number, since it uses less digits than its factorization.

123313133400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012789 (or 5012780 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123313133400 its reverse (4331313321), we get a palindrome (127644446721).

The spelling of 123313133400 in words is "one hundred twenty-three billion, three hundred thirteen million, one hundred thirty-three thousand, four hundred".