1230423100 has 36 divisors (see below), whose sum is σ = 2693671344. Its totient is φ = 487809280.

The previous prime is 1230423091. The next prime is 1230423193. The reversal of 1230423100 is 13240321.

It is a happy number.

It is a super-2 number, since 2×1230423100² = 3027882010027220000, 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 11 ways as a sum of consecutive naturals, for example, 43144 + ... + 65743.

It is an arithmetic number, because the mean of its divisors is an integer number (74824204).

Almost surely, 2^1230423100 is an apocalyptic number.

1230423100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230423100 is an abundant number, since it is smaller than the sum of its proper divisors (1463248244).

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

1230423100 is a wasteful number, since it uses less digits than its factorization.

1230423100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109014 (or 109007 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1230423100 is about 35077.3873029335. The cubic root of 1230423100 is about 1071.5641083987.

Adding to 1230423100 its reverse (13240321), we get a palindrome (1243663421).

The spelling of 1230423100 in words is "one billion, two hundred thirty million, four hundred twenty-three thousand, one hundred".