1031003311123 has 2 divisors, whose sum is σ = 1031003311124. Its totient is φ = 1031003311122.

The previous prime is 1031003311109. The next prime is 1031003311141. The reversal of 1031003311123 is 3211133001301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031003311123 is a prime.

It is a super-2 number, since 2×1031003311123² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1031003311123.

It is not a weakly prime, because it can be changed into another prime (1031003314123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515501655561 + 515501655562.

It is an arithmetic number, because the mean of its divisors is an integer number (515501655562).

Almost surely, 2^{1031003311123} is an apocalyptic number.

1031003311123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031003311123 is an equidigital number, since it uses as much as digits as its factorization.

1031003311123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1031003311123 its reverse (3211133001301), we get a palindrome (4242136312424).

The spelling of 1031003311123 in words is "one trillion, thirty-one billion, three million, three hundred eleven thousand, one hundred twenty-three".