21032101007 has 2 divisors, whose sum is σ = 21032101008. Its totient is φ = 21032101006.

The previous prime is 21032100989. The next prime is 21032101037. The reversal of 21032101007 is 70010123012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21032101007 - 2²⁶ = 20964992143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21032101037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516050503 + 10516050504.

It is an arithmetic number, because the mean of its divisors is an integer number (10516050504).

Almost surely, 2^21032101007 is an apocalyptic number.

21032101007 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032101007 is an equidigital number, since it uses as much as digits as its factorization.

21032101007 is an evil number, because the sum of its binary digits is even.

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

Adding to 21032101007 its reverse (70010123012), we get a palindrome (91042224019).

The spelling of 21032101007 in words is "twenty-one billion, thirty-two million, one hundred one thousand, seven".