1203230401111 has 4 divisors (see below), whose sum is σ = 1213878457872. Its totient is φ = 1192582344352.

The previous prime is 1203230401097. The next prime is 1203230401133. The reversal of 1203230401111 is 1111040323021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203230401111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203230401211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5324028211 + ... + 5324028436.

It is an arithmetic number, because the mean of its divisors is an integer number (303469614468).

Almost surely, 2^{1203230401111} is an apocalyptic number.

1203230401111 is a deficient number, since it is larger than the sum of its proper divisors (10648056761).

1203230401111 is a wasteful number, since it uses less digits than its factorization.

1203230401111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648056760.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1203230401111 its reverse (1111040323021), we get a palindrome (2314270724132).

The spelling of 1203230401111 in words is "one trillion, two hundred three billion, two hundred thirty million, four hundred one thousand, one hundred eleven".