20010020310 has 48 divisors (see below), whose sum is σ = 59458347936. Its totient is φ = 4573718784.

The previous prime is 20010020281. The next prime is 20010020347. The reversal of 20010020310 is 1302001002.

It is a happy number.

It is a super-2 number, since 2×20010020310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20010020292 and 20010020301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15880339 + ... + 15881598.

It is an arithmetic number, because the mean of its divisors is an integer number (1238715582).

Almost surely, 2^20010020310 is an apocalyptic number.

20010020310 is an abundant number, since it is smaller than the sum of its proper divisors (39448327626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20010020310 is a wasteful number, since it uses less digits than its factorization.

20010020310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31761957 (or 31761954 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 20010020310 its reverse (1302001002), we get a palindrome (21312021312).

The spelling of 20010020310 in words is "twenty billion, ten million, twenty thousand, three hundred ten".