1230120203524 has 24 divisors (see below), whose sum is σ = 2293858488600. Its totient is φ = 575192956416.

The previous prime is 1230120203483. The next prime is 1230120203527. The reversal of 1230120203524 is 4253020210321.

It can be written as a sum of positive squares in 4 ways, for example, as 203971463424 + 1026148740100 = 451632^2 + 1012990^2 .

It is not an unprimeable number, because it can be changed into a prime (1230120203527) 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 7 ways as a sum of consecutive naturals, for example, 57600799 + ... + 57622150.

It is an arithmetic number, because the mean of its divisors is an integer number (95577437025).

Almost surely, 2^{1230120203524} is an apocalyptic number.

It is an amenable number.

1230120203524 is a deficient number, since it is larger than the sum of its proper divisors (1063738285076).

1230120203524 is a wasteful number, since it uses less digits than its factorization.

1230120203524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115223127 (or 115223125 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 1230120203524 its reverse (4253020210321), we get a palindrome (5483140413845).

The spelling of 1230120203524 in words is "one trillion, two hundred thirty billion, one hundred twenty million, two hundred three thousand, five hundred twenty-four".