20102210331 has 8 divisors (see below), whose sum is σ = 30631939584. Its totient is φ = 11486977320.

The previous prime is 20102210327. The next prime is 20102210347. The reversal of 20102210331 is 13301220102.

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

It is not a de Polignac number, because 20102210331 - 2² = 20102210327 is a prime.

It is a super-2 number, since 2×20102210331² (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 20102210331.

It is not an unprimeable number, because it can be changed into a prime (20102210131) 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, 478624035 + ... + 478624076.

It is an arithmetic number, because the mean of its divisors is an integer number (3828992448).

Almost surely, 2^20102210331 is an apocalyptic number.

20102210331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20102210331 is a deficient number, since it is larger than the sum of its proper divisors (10529729253).

20102210331 is an equidigital number, since it uses as much as digits as its factorization.

20102210331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957248121.

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

Adding to 20102210331 its reverse (13301220102), we get a palindrome (33403430433).

The spelling of 20102210331 in words is "twenty billion, one hundred two million, two hundred ten thousand, three hundred thirty-one".