20154022312 has 16 divisors (see below), whose sum is σ = 39007785600. Its totient is φ = 9751946160.

The previous prime is 20154022307. The next prime is 20154022313. The reversal of 20154022312 is 21322045102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20154022313) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40632862 + ... + 40633357.

It is an arithmetic number, because the mean of its divisors is an integer number (2437986600).

Almost surely, 2^20154022312 is an apocalyptic number.

It is an amenable number.

20154022312 is a deficient number, since it is larger than the sum of its proper divisors (18853763288).

20154022312 is a wasteful number, since it uses less digits than its factorization.

20154022312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81266256 (or 81266252 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20154022312 its reverse (21322045102), we get a palindrome (41476067414).

The spelling of 20154022312 in words is "twenty billion, one hundred fifty-four million, twenty-two thousand, three hundred twelve".