20002102969 has 2 divisors, whose sum is σ = 20002102970. Its totient is φ = 20002102968.

The previous prime is 20002102961. The next prime is 20002103027. The reversal of 20002102969 is 96920120002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14758605225 + 5243497744 = 121485^2 + 72412^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002102969 - 2³ = 20002102961 is a prime.

It is a super-2 number, since 2×20002102969² (a number of 21 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 20002102969.

It is not a weakly prime, because it can be changed into another prime (20002102961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001051484 + 10001051485.

It is an arithmetic number, because the mean of its divisors is an integer number (10001051485).

Almost surely, 2^20002102969 is an apocalyptic number.

It is an amenable number.

20002102969 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002102969 is an equidigital number, since it uses as much as digits as its factorization.

20002102969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 20002102969 in words is "twenty billion, two million, one hundred two thousand, nine hundred sixty-nine".