20115423541424 has 20 divisors (see below), whose sum is σ = 38979609948120. Its totient is φ = 10056169361280.

The previous prime is 20115423541337. The next prime is 20115423541483. The reversal of 20115423541424 is 42414532451102.

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, 96292994 + ... + 96501665.

It is an arithmetic number, because the mean of its divisors is an integer number (1948980497406).

Almost surely, 2^{20115423541424} is an apocalyptic number.

It is an amenable number.

20115423541424 is a deficient number, since it is larger than the sum of its proper divisors (18864186406696).

20115423541424 is a wasteful number, since it uses less digits than its factorization.

20115423541424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192801188 (or 192801182 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 20115423541424 its reverse (42414532451102), we get a palindrome (62529955992526).

The spelling of 20115423541424 in words is "twenty trillion, one hundred fifteen billion, four hundred twenty-three million, five hundred forty-one thousand, four hundred twenty-four".