1031213103 has 16 divisors (see below), whose sum is σ = 1407113856. Its totient is φ = 671509280.

The previous prime is 1031213101. The next prime is 1031213123. The reversal of 1031213103 is 3013121301.

It is a cyclic number.

It is not a de Polignac number, because 1031213103 - 2¹ = 1031213101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031213101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21808 + ... + 50378.

It is an arithmetic number, because the mean of its divisors is an integer number (87944616).

Almost surely, 2^1031213103 is an apocalyptic number.

1031213103 is a deficient number, since it is larger than the sum of its proper divisors (375900753).

1031213103 is a wasteful number, since it uses less digits than its factorization.

1031213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28854.

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

The square root of 1031213103 is about 32112.5069560133. The cubic root of 1031213103 is about 1010.2979557486.

Adding to 1031213103 its reverse (3013121301), we get a palindrome (4044334404).

The spelling of 1031213103 in words is "one billion, thirty-one million, two hundred thirteen thousand, one hundred three".