31300120103 has 16 divisors (see below), whose sum is σ = 36475046400. Its totient is φ = 26303896800.

The previous prime is 31300120087. The next prime is 31300120133. The reversal of 31300120103 is 30102100313.

It is a cyclic number.

It is not a de Polignac number, because 31300120103 - 2⁴ = 31300120087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300120133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14948 + ... + 250646.

It is an arithmetic number, because the mean of its divisors is an integer number (2279690400).

Almost surely, 2^31300120103 is an apocalyptic number.

31300120103 is a deficient number, since it is larger than the sum of its proper divisors (5174926297).

31300120103 is a wasteful number, since it uses less digits than its factorization.

31300120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236078.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31300120103 its reverse (30102100313), we get a palindrome (61402220416).

The spelling of 31300120103 in words is "thirty-one billion, three hundred million, one hundred twenty thousand, one hundred three".