20010323011 has 12 divisors (see below), whose sum is σ = 23411875392. Its totient is φ = 17052555408.

The previous prime is 20010323009. The next prime is 20010323041. The reversal of 20010323011 is 11032301002.

It is not a de Polignac number, because 20010323011 - 2¹ = 20010323009 is a prime.

It is a super-2 number, since 2×20010323011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010322982 and 20010323000.

It is not an unprimeable number, because it can be changed into a prime (20010323041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1171795 + ... + 1188748.

It is an arithmetic number, because the mean of its divisors is an integer number (1950989616).

Almost surely, 2^20010323011 is an apocalyptic number.

20010323011 is a deficient number, since it is larger than the sum of its proper divisors (3401552381).

20010323011 is a wasteful number, since it uses less digits than its factorization.

20010323011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360730 (or 2360723 counting only the distinct ones).

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

Adding to 20010323011 its reverse (11032301002), we get a palindrome (31042624013).

The spelling of 20010323011 in words is "twenty billion, ten million, three hundred twenty-three thousand, eleven".