31301231200103 has 16 divisors (see below), whose sum is σ = 32094616366080. Its totient is φ = 30519597559776.

The previous prime is 31301231200067. The next prime is 31301231200163. The reversal of 31301231200103 is 30100213210313.

It is not a de Polignac number, because 31301231200103 - 2¹⁰ = 31301231199079 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 (31301231200163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3161051 + ... + 8520252.

It is an arithmetic number, because the mean of its divisors is an integer number (2005913522880).

Almost surely, 2^{31301231200103} is an apocalyptic number.

31301231200103 is a deficient number, since it is larger than the sum of its proper divisors (793385165977).

31301231200103 is a wasteful number, since it uses less digits than its factorization.

31301231200103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11681806.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31301231200103 its reverse (30100213210313), we get a palindrome (61401444410416).

The spelling of 31301231200103 in words is "thirty-one trillion, three hundred one billion, two hundred thirty-one million, two hundred thousand, one hundred three".