1203210123120 has 60 divisors (see below), whose sum is σ = 4040780665896. Its totient is φ = 320856032640.

The previous prime is 1203210123107. The next prime is 1203210123161. The reversal of 1203210123120 is 213210123021.

1203210123120 is a `hidden beast` number, since 1 + 20 + 321 + 0 + 12 + 312 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1203210123093 and 1203210123102.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 835561866 + ... + 835563305.

Almost surely, 2^{1203210123120} is an apocalyptic number.

1203210123120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203210123120 is an abundant number, since it is smaller than the sum of its proper divisors (2837570542776).

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

1203210123120 is a wasteful number, since it uses less digits than its factorization.

1203210123120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671125190 (or 1671125181 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1203210123120 its reverse (213210123021), we get a palindrome (1416420246141).

Subtracting from 1203210123120 its reverse (213210123021), we obtain a palindrome (990000000099).

The spelling of 1203210123120 in words is "one trillion, two hundred three billion, two hundred ten million, one hundred twenty-three thousand, one hundred twenty".