20231111012 has 24 divisors (see below), whose sum is σ = 41449107840. Its totient is φ = 8459000640.

The previous prime is 20231111003. The next prime is 20231111059. The reversal of 20231111012 is 21011113202.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 7 ways as a sum of consecutive naturals, for example, 8810312 + ... + 8812607.

It is an arithmetic number, because the mean of its divisors is an integer number (1727046160).

Almost surely, 2^20231111012 is an apocalyptic number.

It is an amenable number.

20231111012 is an abundant number, since it is smaller than the sum of its proper divisors (21217996828).

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

20231111012 is a wasteful number, since it uses less digits than its factorization.

20231111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17622971 (or 17622969 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20231111012 its reverse (21011113202), we get a palindrome (41242224214).

The spelling of 20231111012 in words is "twenty billion, two hundred thirty-one million, one hundred eleven thousand, twelve".