20202102011 has 8 divisors (see below), whose sum is σ = 24864125664. Its totient is φ = 15984080640.

The previous prime is 20202101999. The next prime is 20202102023. The reversal of 20202102011 is 11020120202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20202101999) and next prime (20202102023).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202102011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20202101983 and 20202102001.

It is not an unprimeable number, because it can be changed into a prime (20202108011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111000470 + ... + 111000651.

It is an arithmetic number, because the mean of its divisors is an integer number (3108015708).

Almost surely, 2^20202102011 is an apocalyptic number.

20202102011 is a deficient number, since it is larger than the sum of its proper divisors (4662023653).

20202102011 is a wasteful number, since it uses less digits than its factorization.

20202102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222001141.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20202102011 its reverse (11020120202), we get a palindrome (31222222213).

The spelling of 20202102011 in words is "twenty billion, two hundred two million, one hundred two thousand, eleven".