2103203101031 has 4 divisors (see below), whose sum is σ = 2103210240600. Its totient is φ = 2103195961464.

The previous prime is 2103203101009. The next prime is 2103203101063. The reversal of 2103203101031 is 1301013023012.

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

It is a cyclic number.

It is not a de Polignac number, because 2103203101031 - 2²² = 2103198906727 is a prime.

It is a super-2 number, since 2×2103203101031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103203101081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3107996 + ... + 3723713.

It is an arithmetic number, because the mean of its divisors is an integer number (525802560150).

Almost surely, 2^{2103203101031} is an apocalyptic number.

2103203101031 is a deficient number, since it is larger than the sum of its proper divisors (7139569).

2103203101031 is an equidigital number, since it uses as much as digits as its factorization.

2103203101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7139568.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 2103203101031 its reverse (1301013023012), we get a palindrome (3404216124043).

The spelling of 2103203101031 in words is "two trillion, one hundred three billion, two hundred three million, one hundred one thousand, thirty-one".