1203131100311 has 16 divisors (see below), whose sum is σ = 1378173158208. Its totient is φ = 1028881190400.

The previous prime is 1203131100293. The next prime is 1203131100313. The reversal of 1203131100311 is 1130011313021.

It is a de Polignac number, because none of the positive numbers 2^k-1203131100311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1203131100311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203131100313) 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 15 ways as a sum of consecutive naturals, for example, 29735951 + ... + 29776383.

It is an arithmetic number, because the mean of its divisors is an integer number (86135822388).

Almost surely, 2^{1203131100311} is an apocalyptic number.

1203131100311 is a deficient number, since it is larger than the sum of its proper divisors (175042057897).

1203131100311 is an equidigital number, since it uses as much as digits as its factorization.

1203131100311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50122.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1203131100311 its reverse (1130011313021), we get a palindrome (2333142413332).

The spelling of 1203131100311 in words is "one trillion, two hundred three billion, one hundred thirty-one million, one hundred thousand, three hundred eleven".