1000011123 has 8 divisors (see below), whose sum is σ = 1481498000. Its totient is φ = 666674064.

The previous prime is 1000011109. The next prime is 1000011137. The reversal of 1000011123 is 3211100001.

It is an interprime number because it is at equal distance from previous prime (1000011109) and next prime (1000011137).

It is not a de Polignac number, because 1000011123 - 2⁴ = 1000011107 is a prime.

It is a super-2 number, since 2×1000011123² = 2000044492247442258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000011223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18518698 + ... + 18518751.

It is an arithmetic number, because the mean of its divisors is an integer number (185187250).

Almost surely, 2^1000011123 is an apocalyptic number.

1000011123 is a deficient number, since it is larger than the sum of its proper divisors (481486877).

1000011123 is an equidigital number, since it uses as much as digits as its factorization.

1000011123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37037458 (or 37037452 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1000011123 is about 31622.9524712668. The cubic root of 1000011123 is about 1000.0037076529.

Adding to 1000011123 its reverse (3211100001), we get a palindrome (4211111124).

It can be divided in two parts, 100001 and 1123, that added together give a square (101124 = 318²).

The spelling of 1000011123 in words is "one billion, eleven thousand, one hundred twenty-three".