20340255111242 has 16 divisors (see below), whose sum is σ = 33287063896800. Its totient is φ = 9244734372240.

The previous prime is 20340255111233. The next prime is 20340255111269. The reversal of 20340255111242 is 24211155204302.

It is a junction number, because it is equal to n+sod(n) for n = 20340255111199 and 20340255111208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41557817 + ... + 42044412.

It is an arithmetic number, because the mean of its divisors is an integer number (2080441493550).

Almost surely, 2^{20340255111242} is an apocalyptic number.

20340255111242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20340255111242 is a deficient number, since it is larger than the sum of its proper divisors (12946808785558).

20340255111242 is a wasteful number, since it uses less digits than its factorization.

20340255111242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83613301.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 20340255111242 in words is "twenty trillion, three hundred forty billion, two hundred fifty-five million, one hundred eleven thousand, two hundred forty-two".