10002020102015 has 4 divisors (see below), whose sum is σ = 12002424122424. Its totient is φ = 8001616081608.

The previous prime is 10002020101963. The next prime is 10002020102029. The reversal of 10002020102015 is 51020102020001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10002020102015 - 2³⁴ = 9984840232831 is a prime.

It is a super-2 number, since 2×10002020102015² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000202010197 + ... + 1000202010206.

It is an arithmetic number, because the mean of its divisors is an integer number (3000606030606).

Almost surely, 2^{10002020102015} is an apocalyptic number.

10002020102015 is a deficient number, since it is larger than the sum of its proper divisors (2000404020409).

10002020102015 is an equidigital number, since it uses as much as digits as its factorization.

10002020102015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000404020408.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 10002020102015 its reverse (51020102020001), we get a palindrome (61022122122016).

The spelling of 10002020102015 in words is "ten trillion, two billion, twenty million, one hundred two thousand, fifteen".