20010020312 has 32 divisors (see below), whose sum is σ = 38396397600. Its totient is φ = 9773568000.

The previous prime is 20010020281. The next prime is 20010020347. The reversal of 20010020312 is 21302001002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20010020293 and 20010020302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99689 + ... + 223512.

It is an arithmetic number, because the mean of its divisors is an integer number (1199887425).

Almost surely, 2^20010020312 is an apocalyptic number.

It is an amenable number.

20010020312 is a deficient number, since it is larger than the sum of its proper divisors (18386377288).

20010020312 is a wasteful number, since it uses less digits than its factorization.

20010020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323387 (or 323383 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20010020312 its reverse (21302001002), we get a palindrome (41312021314).

The spelling of 20010020312 in words is "twenty billion, ten million, twenty thousand, three hundred twelve".