20111010312 has 32 divisors (see below), whose sum is σ = 50842447200. Its totient is φ = 6628347264.

The previous prime is 20111010301. The next prime is 20111010347. The reversal of 20111010312 is 21301011102.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 4705498 + ... + 4709769.

It is an arithmetic number, because the mean of its divisors is an integer number (1588826475).

Almost surely, 2^20111010312 is an apocalyptic number.

It is an amenable number.

20111010312 is an abundant number, since it is smaller than the sum of its proper divisors (30731436888).

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

20111010312 is a wasteful number, since it uses less digits than its factorization.

20111010312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9415365 (or 9415361 counting only the distinct ones).

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

Adding to 20111010312 its reverse (21301011102), we get a palindrome (41412021414).

The spelling of 20111010312 in words is "twenty billion, one hundred eleven million, ten thousand, three hundred twelve".