1001230140 has 24 divisors (see below), whose sum is σ = 2803444560. Its totient is φ = 266994688.

The previous prime is 1001230129. The next prime is 1001230141. The reversal of 1001230140 is 410321001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001230141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8343525 + ... + 8343644.

It is an arithmetic number, because the mean of its divisors is an integer number (116810190).

Almost surely, 2^1001230140 is an apocalyptic number.

1001230140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001230140 is an abundant number, since it is smaller than the sum of its proper divisors (1802214420).

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

1001230140 is a wasteful number, since it uses less digits than its factorization.

1001230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16687181 (or 16687179 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1001230140 is about 31642.2208449407. The cubic root of 1001230140 is about 1000.4098786432.

Adding to 1001230140 its reverse (410321001), we get a palindrome (1411551141).

The spelling of 1001230140 in words is "one billion, one million, two hundred thirty thousand, one hundred forty".