1000423100 has 18 divisors (see below), whose sum is σ = 2170918344. Its totient is φ = 400169200.

The previous prime is 1000423097. The next prime is 1000423117. The reversal of 1000423100 is 13240001.

It is a happy number.

It is a super-2 number, since 2×1000423100² = 2001692758027220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5002016 + ... + 5002215.

Almost surely, 2^1000423100 is an apocalyptic number.

1000423100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000423100 is an abundant number, since it is smaller than the sum of its proper divisors (1170495244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000423100 is a wasteful number, since it uses less digits than its factorization.

1000423100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10004245 (or 10004238 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1000423100 is about 31629.4656926101. The cubic root of 1000423100 is about 1000.1410134476.

Adding to 1000423100 its reverse (13240001), we get a palindrome (1013663101).

The spelling of 1000423100 in words is "one billion, four hundred twenty-three thousand, one hundred".