10021531125107 has 2 divisors, whose sum is σ = 10021531125108. Its totient is φ = 10021531125106.

The previous prime is 10021531125061. The next prime is 10021531125157. The reversal of 10021531125107 is 70152113512001.

10021531125107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10021531125107 - 2¹⁶ = 10021531059571 is a prime.

It is a super-2 number, since 2×10021531125107² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10021531125107.

It is not a weakly prime, because it can be changed into another prime (10021531125157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010765562553 + 5010765562554.

It is an arithmetic number, because the mean of its divisors is an integer number (5010765562554).

Almost surely, 2^{10021531125107} is an apocalyptic number.

10021531125107 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021531125107 is an equidigital number, since it uses as much as digits as its factorization.

10021531125107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 29.

Adding to 10021531125107 its reverse (70152113512001), we get a palindrome (80173644637108).

The spelling of 10021531125107 in words is "ten trillion, twenty-one billion, five hundred thirty-one million, one hundred twenty-five thousand, one hundred seven".