1031231103 has 32 divisors (see below), whose sum is σ = 1599307776. Its totient is φ = 578860128.

The previous prime is 1031231081. The next prime is 1031231119. The reversal of 1031231103 is 3011321301.

It is not a de Polignac number, because 1031231103 - 2⁸ = 1031230847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031230103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 650650 + ... + 652232.

It is an arithmetic number, because the mean of its divisors is an integer number (49978368).

Almost surely, 2^1031231103 is an apocalyptic number.

1031231103 is a deficient number, since it is larger than the sum of its proper divisors (568076673).

1031231103 is a wasteful number, since it uses less digits than its factorization.

1031231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123.

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

The square root of 1031231103 is about 32112.7872194240. The cubic root of 1031231103 is about 1010.3038340219.

Adding to 1031231103 its reverse (3011321301), we get a palindrome (4042552404).

The spelling of 1031231103 in words is "one billion, thirty-one million, two hundred thirty-one thousand, one hundred three".