1203230331101 has 4 divisors (see below), whose sum is σ = 1203297987900. Its totient is φ = 1203162674304.

The previous prime is 1203230331077. The next prime is 1203230331109. The reversal of 1203230331101 is 1011330323021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 761257995001 + 441972336100 = 872501^2 + 664810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203230331101 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 (1203230331109) 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, 33801716 + ... + 33837293.

It is an arithmetic number, because the mean of its divisors is an integer number (300824496975).

Almost surely, 2^{1203230331101} is an apocalyptic number.

It is an amenable number.

1203230331101 is a deficient number, since it is larger than the sum of its proper divisors (67656799).

1203230331101 is an equidigital number, since it uses as much as digits as its factorization.

1203230331101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67656798.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1203230331101 its reverse (1011330323021), we get a palindrome (2214560654122).

The spelling of 1203230331101 in words is "one trillion, two hundred three billion, two hundred thirty million, three hundred thirty-one thousand, one hundred one".