31301213103 has 32 divisors (see below), whose sum is σ = 46675353600. Its totient is φ = 20731487328.

The previous prime is 31301213089. The next prime is 31301213117. The reversal of 31301213103 is 30131210313.

It is a happy number.

31301213103 is a `hidden beast` number, since 31 + 301 + 21 + 310 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (31301213089) and next prime (31301213117).

It is not a de Polignac number, because 31301213103 - 2⁵ = 31301213071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301253103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2659650 + ... + 2671392.

It is an arithmetic number, because the mean of its divisors is an integer number (1458604800).

Almost surely, 2^31301213103 is an apocalyptic number.

31301213103 is a deficient number, since it is larger than the sum of its proper divisors (15374140497).

31301213103 is a wasteful number, since it uses less digits than its factorization.

31301213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12388 (or 12382 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31301213103 its reverse (30131210313), we get a palindrome (61432423416).

The spelling of 31301213103 in words is "thirty-one billion, three hundred one million, two hundred thirteen thousand, one hundred three".