1231022103 has 32 divisors (see below), whose sum is σ = 1773615360. Its totient is φ = 756967680.

The previous prime is 1231022083. The next prime is 1231022119. The reversal of 1231022103 is 3012201321.

It is not a de Polignac number, because 1231022103 - 2¹⁶ = 1230956567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231022203) 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 31 ways as a sum of consecutive naturals, for example, 1031275 + ... + 1032467.

It is an arithmetic number, because the mean of its divisors is an integer number (55425480).

Almost surely, 2^1231022103 is an apocalyptic number.

1231022103 is a deficient number, since it is larger than the sum of its proper divisors (542593257).

1231022103 is a wasteful number, since it uses less digits than its factorization.

1231022103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1231022103 is about 35085.9245709729. The cubic root of 1231022103 is about 1071.7379689143.

Adding to 1231022103 its reverse (3012201321), we get a palindrome (4243223424).

The spelling of 1231022103 in words is "one billion, two hundred thirty-one million, twenty-two thousand, one hundred three".