21140260611000 has 128 divisors (see below), whose sum is σ = 66610659735360. Its totient is φ = 5581586880000.

The previous prime is 21140260610921. The next prime is 21140260611037. The reversal of 21140260611000 is 11606204112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34581919 + ... + 35187918.

Almost surely, 2^{21140260611000} is an apocalyptic number.

21140260611000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21140260611000 is an abundant number, since it is smaller than the sum of its proper divisors (45470399124360).

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

21140260611000 is a wasteful number, since it uses less digits than its factorization.

21140260611000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69769962 (or 69769948 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 21140260611000 its reverse (11606204112), we get a palindrome (21151866815112).

The spelling of 21140260611000 in words is "twenty-one trillion, one hundred forty billion, two hundred sixty million, six hundred eleven thousand".