1000423111 has 12 divisors (see below), whose sum is σ = 1047439512. Its totient is φ = 955437296.

The previous prime is 1000423097. The next prime is 1000423117. The reversal of 1000423111 is 1113240001.

It is not a de Polignac number, because 1000423111 - 2¹¹ = 1000421063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000423091 and 1000423100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000423117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 499965 + ... + 501961.

It is an arithmetic number, because the mean of its divisors is an integer number (87286626).

Almost surely, 2^1000423111 is an apocalyptic number.

1000423111 is a deficient number, since it is larger than the sum of its proper divisors (47016401).

1000423111 is an equidigital number, since it uses as much as digits as its factorization.

1000423111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1000423111 is about 31629.4658664986. The cubic root of 1000423111 is about 1000.1410171132.

Adding to 1000423111 its reverse (1113240001), we get a palindrome (2113663112).

The spelling of 1000423111 in words is "one billion, four hundred twenty-three thousand, one hundred eleven".