20102323011 has 8 divisors (see below), whose sum is σ = 26820984000. Its totient is φ = 13392605352.

The previous prime is 20102323009. The next prime is 20102323049. The reversal of 20102323011 is 11032320102.

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

It is not a de Polignac number, because 20102323011 - 2¹ = 20102323009 is a prime.

It is a super-2 number, since 2×20102323011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20102323051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2230585 + ... + 2239578.

It is an arithmetic number, because the mean of its divisors is an integer number (3352623000).

Almost surely, 2^20102323011 is an apocalyptic number.

20102323011 is a deficient number, since it is larger than the sum of its proper divisors (6718660989).

20102323011 is a wasteful number, since it uses less digits than its factorization.

20102323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471665.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20102323011 its reverse (11032320102), we get a palindrome (31134643113).

The spelling of 20102323011 in words is "twenty billion, one hundred two million, three hundred twenty-three thousand, eleven".