1203203012113 has 2 divisors, whose sum is σ = 1203203012114. Its totient is φ = 1203203012112.

The previous prime is 1203203012111. The next prime is 1203203012153. The reversal of 1203203012113 is 3112103023021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846164496384 + 357038515729 = 919872^2 + 597527^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203203012113 - 2¹ = 1203203012111 is a prime.

Together with 1203203012111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1203203012111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601601506056 + 601601506057.

It is an arithmetic number, because the mean of its divisors is an integer number (601601506057).

Almost surely, 2^{1203203012113} is an apocalyptic number.

It is an amenable number.

1203203012113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203203012113 is an equidigital number, since it uses as much as digits as its factorization.

1203203012113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1203203012113 its reverse (3112103023021), we get a palindrome (4315306035134).

The spelling of 1203203012113 in words is "one trillion, two hundred three billion, two hundred three million, twelve thousand, one hundred thirteen".