21053670185003 has 2 divisors, whose sum is σ = 21053670185004. Its totient is φ = 21053670185002.

The previous prime is 21053670184979. The next prime is 21053670185017. The reversal of 21053670185003 is 30058107635012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21053670185003 - 2¹⁶ = 21053670119467 is a prime.

It is a super-2 number, since 2×21053670185003² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21053670185203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10526835092501 + 10526835092502.

It is an arithmetic number, because the mean of its divisors is an integer number (10526835092502).

Almost surely, 2^{21053670185003} is an apocalyptic number.

21053670185003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21053670185003 is an equidigital number, since it uses as much as digits as its factorization.

21053670185003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 21053670185003 in words is "twenty-one trillion, fifty-three billion, six hundred seventy million, one hundred eighty-five thousand, three".