20023150122512 has 80 divisors (see below), whose sum is σ = 40893064134720. Its totient is φ = 9471565094400.

The previous prime is 20023150122509. The next prime is 20023150122517. The reversal of 20023150122512 is 21522105132002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20023150122517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721983398 + ... + 722011130.

It is an arithmetic number, because the mean of its divisors is an integer number (511163301684).

Almost surely, 2^{20023150122512} is an apocalyptic number.

It is an amenable number.

20023150122512 is an abundant number, since it is smaller than the sum of its proper divisors (20869914012208).

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

20023150122512 is a wasteful number, since it uses less digits than its factorization.

20023150122512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30952 (or 30946 counting only the distinct ones).

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

Adding to 20023150122512 its reverse (21522105132002), we get a palindrome (41545255254514).

The spelling of 20023150122512 in words is "twenty trillion, twenty-three billion, one hundred fifty million, one hundred twenty-two thousand, five hundred twelve".