123101552000 has 128 divisors (see below), whose sum is σ = 349784585280. Its totient is φ = 42206208000.

The previous prime is 123101551973. The next prime is 123101552009. The reversal of 123101552000 is 255101321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123101552009) 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 15 ways as a sum of consecutive naturals, for example, 437561 + ... + 661560.

Almost surely, 2^123101552000 is an apocalyptic number.

123101552000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123101552000 is an abundant number, since it is smaller than the sum of its proper divisors (226683033280).

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

123101552000 is an equidigital number, since it uses as much as digits as its factorization.

123101552000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099157 (or 1099135 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 123101552000 its reverse (255101321), we get a palindrome (123356653321).

The spelling of 123101552000 in words is "one hundred twenty-three billion, one hundred one million, five hundred fifty-two thousand".