31231312022103 has 16 divisors (see below), whose sum is σ = 42010545438720. Its totient is φ = 20636479144064.

The previous prime is 31231312022101. The next prime is 31231312022111. The reversal of 31231312022103 is 30122021313213.

It is a cyclic number.

It is not a de Polignac number, because 31231312022103 - 2¹ = 31231312022101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31231312022101) 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, 80515300 + ... + 80902262.

It is an arithmetic number, because the mean of its divisors is an integer number (2625659089920).

Almost surely, 2^{31231312022103} is an apocalyptic number.

31231312022103 is a deficient number, since it is larger than the sum of its proper divisors (10779233416617).

31231312022103 is a wasteful number, since it uses less digits than its factorization.

31231312022103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625158.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31231312022103 its reverse (30122021313213), we get a palindrome (61353333335316).

The spelling of 31231312022103 in words is "thirty-one trillion, two hundred thirty-one billion, three hundred twelve million, twenty-two thousand, one hundred three".