21020143130039 has 2 divisors, whose sum is σ = 21020143130040. Its totient is φ = 21020143130038.

The previous prime is 21020143130011. The next prime is 21020143130137. The reversal of 21020143130039 is 93003134102012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21020143130039 - 2²⁸ = 21019874694583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21020143129993 and 21020143130020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21020143135039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510071565019 + 10510071565020.

It is an arithmetic number, because the mean of its divisors is an integer number (10510071565020).

Almost surely, 2^{21020143130039} is an apocalyptic number.

21020143130039 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020143130039 is an equidigital number, since it uses as much as digits as its factorization.

21020143130039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 21020143130039 in words is "twenty-one trillion, twenty billion, one hundred forty-three million, one hundred thirty thousand, thirty-nine".