1210123103120 has 20 divisors (see below), whose sum is σ = 2813536214940. Its totient is φ = 484049241216.

The previous prime is 1210123103093. The next prime is 1210123103183. The reversal of 1210123103120 is 213013210121.

It can be written as a sum of positive squares in 2 ways, for example, as 555603270544 + 654519832576 = 745388^2 + 809024^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7563269315 + ... + 7563269474.

It is an arithmetic number, because the mean of its divisors is an integer number (140676810747).

Almost surely, 2^{1210123103120} is an apocalyptic number.

1210123103120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210123103120 is an abundant number, since it is smaller than the sum of its proper divisors (1603413111820).

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

1210123103120 is a wasteful number, since it uses less digits than its factorization.

1210123103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15126538802 (or 15126538796 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1210123103120 its reverse (213013210121), we get a palindrome (1423136313241).

The spelling of 1210123103120 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, one hundred three thousand, one hundred twenty".