20243155112 has 16 divisors (see below), whose sum is σ = 38079555360. Its totient is φ = 10088607024.

The previous prime is 20243155103. The next prime is 20243155129. The reversal of 20243155112 is 21155134202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4118708 + ... + 4123619.

It is an arithmetic number, because the mean of its divisors is an integer number (2379972210).

Almost surely, 2^20243155112 is an apocalyptic number.

It is an amenable number.

20243155112 is a deficient number, since it is larger than the sum of its proper divisors (17836400248).

20243155112 is a wasteful number, since it uses less digits than its factorization.

20243155112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8242640 (or 8242636 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20243155112 its reverse (21155134202), we get a palindrome (41398289314).

The spelling of 20243155112 in words is "twenty billion, two hundred forty-three million, one hundred fifty-five thousand, one hundred twelve".