1030111111123 has 4 divisors (see below), whose sum is σ = 1030266747160. Its totient is φ = 1029955475088.

The previous prime is 1030111111121. The next prime is 1030111111163. The reversal of 1030111111123 is 3211111110301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1030111111123 - 2¹ = 1030111111121 is a prime.

It is a super-2 number, since 2×1030111111123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030111111097 and 1030111111106.

It is not an unprimeable number, because it can be changed into a prime (1030111111121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77808090 + ... + 77821327.

It is an arithmetic number, because the mean of its divisors is an integer number (257566686790).

Almost surely, 2^{1030111111123} is an apocalyptic number.

1030111111123 is a deficient number, since it is larger than the sum of its proper divisors (155636037).

1030111111123 is an equidigital number, since it uses as much as digits as its factorization.

1030111111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155636036.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 1030111111123 its reverse (3211111110301), we get a palindrome (4241222221424).

The spelling of 1030111111123 in words is "one trillion, thirty billion, one hundred eleven million, one hundred eleven thousand, one hundred twenty-three".