1031111323 has 16 divisors (see below), whose sum is σ = 1195799040. Its totient is φ = 879228000.

The previous prime is 1031111311. The next prime is 1031111329. The reversal of 1031111323 is 3231111301.

It is a cyclic number.

It is not a de Polignac number, because 1031111323 - 2¹³ = 1031103131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031111297 and 1031111306.

It is not an unprimeable number, because it can be changed into a prime (1031111329) 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, 3315 + ... + 45532.

It is an arithmetic number, because the mean of its divisors is an integer number (74737440).

Almost surely, 2^1031111323 is an apocalyptic number.

1031111323 is a deficient number, since it is larger than the sum of its proper divisors (164687717).

1031111323 is a wasteful number, since it uses less digits than its factorization.

1031111323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48978.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1031111323 is about 32110.9221761070. The cubic root of 1031111323 is about 1010.2647160917.

Adding to 1031111323 its reverse (3231111301), we get a palindrome (4262222624).

The spelling of 1031111323 in words is "one billion, thirty-one million, one hundred eleven thousand, three hundred twenty-three".