20115424311254 has 16 divisors (see below), whose sum is σ = 31398139650240. Its totient is φ = 9657306584520.

The previous prime is 20115424311239. The next prime is 20115424311259. The reversal of 20115424311254 is 45211342451102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20115424311259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1982200712 + ... + 1982210859.

It is an arithmetic number, because the mean of its divisors is an integer number (1962383728140).

Almost surely, 2^{20115424311254} is an apocalyptic number.

20115424311254 is a deficient number, since it is larger than the sum of its proper divisors (11282715338986).

20115424311254 is a wasteful number, since it uses less digits than its factorization.

20115424311254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964411675.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 20115424311254 its reverse (45211342451102), we get a palindrome (65326766762356).

The spelling of 20115424311254 in words is "twenty trillion, one hundred fifteen billion, four hundred twenty-four million, three hundred eleven thousand, two hundred fifty-four".