31201033103 has 16 divisors (see below), whose sum is σ = 33813310080. Its totient is φ = 28694209824.

The previous prime is 31201033069. The next prime is 31201033117. The reversal of 31201033103 is 30133010213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31201033103 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 (31201033133) 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 15 ways as a sum of consecutive naturals, for example, 16025 + ... + 250317.

It is an arithmetic number, because the mean of its divisors is an integer number (2113331880).

Almost surely, 2^31201033103 is an apocalyptic number.

31201033103 is a deficient number, since it is larger than the sum of its proper divisors (2612276977).

31201033103 is a wasteful number, since it uses less digits than its factorization.

31201033103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234518.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31201033103 its reverse (30133010213), we get a palindrome (61334043316).

The spelling of 31201033103 in words is "thirty-one billion, two hundred one million, thirty-three thousand, one hundred three".