1203030331031 has 4 divisors (see below), whose sum is σ = 1203568120632. Its totient is φ = 1202492541432.

The previous prime is 1203030331007. The next prime is 1203030331033. The reversal of 1203030331031 is 1301330303021.

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-1203030331031 is a prime.

It is a super-2 number, since 2×1203030331031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203030330994 and 1203030331012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203030331033) 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 3 ways as a sum of consecutive naturals, for example, 268891445 + ... + 268895918.

It is an arithmetic number, because the mean of its divisors is an integer number (300892030158).

Almost surely, 2^{1203030331031} is an apocalyptic number.

1203030331031 is a deficient number, since it is larger than the sum of its proper divisors (537789601).

1203030331031 is an equidigital number, since it uses as much as digits as its factorization.

1203030331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537789600.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 1203030331031 its reverse (1301330303021), we get a palindrome (2504360634052).

The spelling of 1203030331031 in words is "one trillion, two hundred three billion, thirty million, three hundred thirty-one thousand, thirty-one".