1230023140 has 24 divisors (see below), whose sum is σ = 2718999360. Its totient is φ = 466113888.

The previous prime is 1230023129. The next prime is 1230023149. The reversal of 1230023140 is 413200321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1230023149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618072 + ... + 1618831.

It is an arithmetic number, because the mean of its divisors is an integer number (113291640).

Almost surely, 2^1230023140 is an apocalyptic number.

1230023140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230023140 is an abundant number, since it is smaller than the sum of its proper divisors (1488976220).

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

1230023140 is a wasteful number, since it uses less digits than its factorization.

1230023140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236931 (or 3236929 counting only the distinct ones).

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

The square root of 1230023140 is about 35071.6857308000. The cubic root of 1230023140 is about 1071.4479886597.

Adding to 1230023140 its reverse (413200321), we get a palindrome (1643223461).

The spelling of 1230023140 in words is "one billion, two hundred thirty million, twenty-three thousand, one hundred forty".