2103113031 has 24 divisors (see below), whose sum is σ = 3032519280. Its totient is φ = 1294841856.

The previous prime is 2103113011. The next prime is 2103113113. The reversal of 2103113031 is 1303113012.

It is not a de Polignac number, because 2103113031 - 2⁷ = 2103112903 is a prime.

It is a super-2 number, since 2×2103113031² = 8846168842324013922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2103113031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103113011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23175 + ... + 68871.

It is an arithmetic number, because the mean of its divisors is an integer number (126354970).

Almost surely, 2^2103113031 is an apocalyptic number.

2103113031 is a deficient number, since it is larger than the sum of its proper divisors (929406249).

2103113031 is a wasteful number, since it uses less digits than its factorization.

2103113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45775 (or 45752 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2103113031 is about 45859.7103239870. The cubic root of 2103113031 is about 1281.2116275924.

Adding to 2103113031 its reverse (1303113012), we get a palindrome (3406226043).

The spelling of 2103113031 in words is "two billion, one hundred three million, one hundred thirteen thousand, thirty-one".