21034313143000 has 32 divisors (see below), whose sum is σ = 49220292756960. Its totient is φ = 8413725256800.

The previous prime is 21034313142977. The next prime is 21034313143013. The reversal of 21034313143000 is 34131343012.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10517155572 + ... + 10517157571.

It is an arithmetic number, because the mean of its divisors is an integer number (1538134148655).

Almost surely, 2^{21034313143000} is an apocalyptic number.

21034313143000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21034313143000 is an abundant number, since it is smaller than the sum of its proper divisors (28185979613960).

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

21034313143000 is a wasteful number, since it uses less digits than its factorization.

21034313143000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21034313164 (or 21034313150 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21034313143000 its reverse (34131343012), we get a palindrome (21068444486012).

The spelling of 21034313143000 in words is "twenty-one trillion, thirty-four billion, three hundred thirteen million, one hundred forty-three thousand".