20100332011 has 4 divisors (see below), whose sum is σ = 20115572400. Its totient is φ = 20085091624.

The previous prime is 20100331981. The next prime is 20100332023. The reversal of 20100332011 is 11023300102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11023300102 = 2 ⋅5511650051.

It is a cyclic number.

It is not a de Polignac number, because 20100332011 - 2¹³ = 20100323819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20100331982 and 20100332000.

It is not an unprimeable number, because it can be changed into a prime (20100332081) 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 3 ways as a sum of consecutive naturals, for example, 7618216 + ... + 7620853.

It is an arithmetic number, because the mean of its divisors is an integer number (5028893100).

Almost surely, 2^20100332011 is an apocalyptic number.

20100332011 is a deficient number, since it is larger than the sum of its proper divisors (15240389).

20100332011 is a wasteful number, since it uses less digits than its factorization.

20100332011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15240388.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20100332011 its reverse (11023300102), we get a palindrome (31123632113).

The spelling of 20100332011 in words is "twenty billion, one hundred million, three hundred thirty-two thousand, eleven".