21003001102007 has 2 divisors, whose sum is σ = 21003001102008. Its totient is φ = 21003001102006.

The previous prime is 21003001101917. The next prime is 21003001102009. The reversal of 21003001102007 is 70020110030012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21003001102007 - 2³⁸ = 20728123195063 is a prime.

It is a super-2 number, since 2×21003001102007² (a number of 27 digits) contains 22 as substring.

Together with 21003001102009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21003001102009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501500551003 + 10501500551004.

It is an arithmetic number, because the mean of its divisors is an integer number (10501500551004).

Almost surely, 2^{21003001102007} is an apocalyptic number.

21003001102007 is a deficient number, since it is larger than the sum of its proper divisors (1).

21003001102007 is an equidigital number, since it uses as much as digits as its factorization.

21003001102007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

Adding to 21003001102007 its reverse (70020110030012), we get a palindrome (91023111132019).

The spelling of 21003001102007 in words is "twenty-one trillion, three billion, one million, one hundred two thousand, seven".