21030133143 has 8 divisors (see below), whose sum is σ = 28395116800. Its totient is φ = 13842619128.

The previous prime is 21030133133. The next prime is 21030133151. The reversal of 21030133143 is 34133103012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21030133143 - 2⁶ = 21030133079 is a prime.

It is a super-3 number, since 3×21030133143³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030133133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44367133 + ... + 44367606.

It is an arithmetic number, because the mean of its divisors is an integer number (3549389600).

Almost surely, 2^21030133143 is an apocalyptic number.

21030133143 is a deficient number, since it is larger than the sum of its proper divisors (7364983657).

21030133143 is an equidigital number, since it uses as much as digits as its factorization.

21030133143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88734821.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21030133143 its reverse (34133103012), we get a palindrome (55163236155).

The spelling of 21030133143 in words is "twenty-one billion, thirty million, one hundred thirty-three thousand, one hundred forty-three".