20312111242 has 8 divisors (see below), whose sum is σ = 30530221632. Its totient is φ = 10135370700.

The previous prime is 20312111231. The next prime is 20312111251. The reversal of 20312111242 is 24211121302.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 10341234 + ... + 10343197.

It is an arithmetic number, because the mean of its divisors is an integer number (3816277704).

Almost surely, 2^20312111242 is an apocalyptic number.

20312111242 is a deficient number, since it is larger than the sum of its proper divisors (10218110390).

20312111242 is a wasteful number, since it uses less digits than its factorization.

20312111242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20684924.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20312111242 its reverse (24211121302), we get a palindrome (44523232544).

The spelling of 20312111242 in words is "twenty billion, three hundred twelve million, one hundred eleven thousand, two hundred forty-two".