1210201232123 has 16 divisors (see below), whose sum is σ = 1319377943520. Its totient is φ = 1103384249856.

The previous prime is 1210201232089. The next prime is 1210201232131. The reversal of 1210201232123 is 3212321020121.

It is a cyclic number.

It is not a de Polignac number, because 1210201232123 - 2³⁰ = 1209127490299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210201232095 and 1210201232104.

It is not an unprimeable number, because it can be changed into a prime (1210201232153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822068 + ... + 1759601.

It is an arithmetic number, because the mean of its divisors is an integer number (82461121470).

Almost surely, 2^{1210201232123} is an apocalyptic number.

1210201232123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1210201232123 is a deficient number, since it is larger than the sum of its proper divisors (109176711397).

1210201232123 is a wasteful number, since it uses less digits than its factorization.

1210201232123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582126.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1210201232123 its reverse (3212321020121), we get a palindrome (4422522252244).

The spelling of 1210201232123 in words is "one trillion, two hundred ten billion, two hundred one million, two hundred thirty-two thousand, one hundred twenty-three".