21000300140 has 12 divisors (see below), whose sum is σ = 44100630336. Its totient is φ = 8400120048.

The previous prime is 21000300137. The next prime is 21000300143. The reversal of 21000300140 is 4100300012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21000300137) and next prime (21000300143).

It is not an unprimeable number, because it can be changed into a prime (21000300143) 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 3 ways as a sum of consecutive naturals, for example, 525007484 + ... + 525007523.

It is an arithmetic number, because the mean of its divisors is an integer number (3675052528).

Almost surely, 2^21000300140 is an apocalyptic number.

21000300140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21000300140 is an abundant number, since it is smaller than the sum of its proper divisors (23100330196).

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

21000300140 is a wasteful number, since it uses less digits than its factorization.

21000300140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050015016 (or 1050015014 counting only the distinct ones).

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

Adding to 21000300140 its reverse (4100300012), we get a palindrome (25100600152).

The spelling of 21000300140 in words is "twenty-one billion, three hundred thousand, one hundred forty".