123433161100 has 36 divisors (see below), whose sum is σ = 277086171600. Its totient is φ = 47670736960.

The previous prime is 123433161053. The next prime is 123433161127. The reversal of 123433161100 is 1161334321.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 11 ways as a sum of consecutive naturals, for example, 21278680 + ... + 21284479.

It is an arithmetic number, because the mean of its divisors is an integer number (7696838100).

Almost surely, 2^123433161100 is an apocalyptic number.

123433161100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123433161100 is an abundant number, since it is smaller than the sum of its proper divisors (153653010500).

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

123433161100 is a wasteful number, since it uses less digits than its factorization.

123433161100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42563202 (or 42563195 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 123433161100 its reverse (1161334321), we get a palindrome (124594495421).

The spelling of 123433161100 in words is "one hundred twenty-three billion, four hundred thirty-three million, one hundred sixty-one thousand, one hundred".