21033003107 has 2 divisors, whose sum is σ = 21033003108. Its totient is φ = 21033003106.

The previous prime is 21033003077. The next prime is 21033003137. The reversal of 21033003107 is 70130033012.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (21033003077) and next prime (21033003137).

It is a cyclic number.

It is not a de Polignac number, because 21033003107 - 2²² = 21028808803 is a prime.

It is not a weakly prime, because it can be changed into another prime (21033003137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516501553 + 10516501554.

It is an arithmetic number, because the mean of its divisors is an integer number (10516501554).

Almost surely, 2^21033003107 is an apocalyptic number.

21033003107 is a deficient number, since it is larger than the sum of its proper divisors (1).

21033003107 is an equidigital number, since it uses as much as digits as its factorization.

21033003107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 20.

Adding to 21033003107 its reverse (70130033012), we get a palindrome (91163036119).

The spelling of 21033003107 in words is "twenty-one billion, thirty-three million, three thousand, one hundred seven".