31100213103 has 8 divisors (see below), whose sum is σ = 42478340016. Its totient is φ = 20227780800.

The previous prime is 31100213101. The next prime is 31100213113. The reversal of 31100213103 is 30131200113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31100213103 - 2¹ = 31100213101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100213101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126423508 + ... + 126423753.

It is an arithmetic number, because the mean of its divisors is an integer number (5309792502).

Almost surely, 2^31100213103 is an apocalyptic number.

31100213103 is a deficient number, since it is larger than the sum of its proper divisors (11378126913).

31100213103 is a wasteful number, since it uses less digits than its factorization.

31100213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252847305.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31100213103 its reverse (30131200113), we get a palindrome (61231413216).

The spelling of 31100213103 in words is "thirty-one billion, one hundred million, two hundred thirteen thousand, one hundred three".