123010120000 has 70 divisors (see below), whose sum is σ = 305025218498. Its totient is φ = 49204032000.

The previous prime is 123010119977. The next prime is 123010120003. The reversal of 123010120000 is 21010321.

It can be written as a sum of positive squares in 5 ways, for example, as 50524250176 + 72485869824 = 224776^2 + 269232^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123010120003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1497627 + ... + 1577626.

Almost surely, 2^123010120000 is an apocalyptic number.

123010120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123010120000 is an abundant number, since it is smaller than the sum of its proper divisors (182015098498).

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

123010120000 is an frugal number, since it uses more digits than its factorization.

123010120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075285 (or 3075260 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 123010120000 its reverse (21010321), we get a palindrome (123031130321).

The spelling of 123010120000 in words is "one hundred twenty-three billion, ten million, one hundred twenty thousand".