21145010143 has 2 divisors, whose sum is σ = 21145010144. Its totient is φ = 21145010142.

The previous prime is 21145010123. The next prime is 21145010147. The reversal of 21145010143 is 34101054112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21145010143 - 2¹³ = 21145001951 is a prime.

It is a super-2 number, since 2×21145010143² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21145010147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10572505071 + 10572505072.

It is an arithmetic number, because the mean of its divisors is an integer number (10572505072).

Almost surely, 2^21145010143 is an apocalyptic number.

21145010143 is a deficient number, since it is larger than the sum of its proper divisors (1).

21145010143 is an equidigital number, since it uses as much as digits as its factorization.

21145010143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 21145010143 its reverse (34101054112), we get a palindrome (55246064255).

The spelling of 21145010143 in words is "twenty-one billion, one hundred forty-five million, ten thousand, one hundred forty-three".