1231250103 has 24 divisors (see below), whose sum is σ = 1873697280. Its totient is φ = 776958480.

The previous prime is 1231250101. The next prime is 1231250149. The reversal of 1231250103 is 3010521321.

It is not a de Polignac number, because 1231250103 - 2¹ = 1231250101 is a prime.

It is a super-2 number, since 2×1231250103² = 3031953632275021218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231250101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259450 + ... + 264152.

It is an arithmetic number, because the mean of its divisors is an integer number (78070720).

Almost surely, 2^1231250103 is an apocalyptic number.

1231250103 is a deficient number, since it is larger than the sum of its proper divisors (642447177).

1231250103 is a wasteful number, since it uses less digits than its factorization.

1231250103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6259 (or 6256 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1231250103 is about 35089.1735867347. The cubic root of 1231250103 is about 1071.8041310550.

Adding to 1231250103 its reverse (3010521321), we get a palindrome (4241771424).

The spelling of 1231250103 in words is "one billion, two hundred thirty-one million, two hundred fifty thousand, one hundred three".