31331022103 has 6 divisors (see below), whose sum is σ = 32076597264. Its totient is φ = 30602391876.

The previous prime is 31331022101. The next prime is 31331022109. The reversal of 31331022103 is 30122013313.

It is not a de Polignac number, because 31331022103 - 2¹ = 31331022101 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 (31331022101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8470575 + ... + 8474272.

It is an arithmetic number, because the mean of its divisors is an integer number (5346099544).

Almost surely, 2^31331022103 is an apocalyptic number.

31331022103 is a deficient number, since it is larger than the sum of its proper divisors (745575161).

31331022103 is an equidigital number, since it uses as much as digits as its factorization.

31331022103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16944933 (or 16944890 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31331022103 its reverse (30122013313), we get a palindrome (61453035416).

The spelling of 31331022103 in words is "thirty-one billion, three hundred thirty-one million, twenty-two thousand, one hundred three".