20312231242 has 8 divisors (see below), whose sum is σ = 30484329696. Its totient is φ = 10150788012.

The previous prime is 20312231237. The next prime is 20312231249. The reversal of 20312231242 is 24213221302.

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

It is not an unprimeable number, because it can be changed into a prime (20312231249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659038 + ... + 2666665.

It is an arithmetic number, because the mean of its divisors is an integer number (3810541212).

Almost surely, 2^20312231242 is an apocalyptic number.

20312231242 is a deficient number, since it is larger than the sum of its proper divisors (10172098454).

20312231242 is a wasteful number, since it uses less digits than its factorization.

20312231242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327612.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20312231242 its reverse (24213221302), we get a palindrome (44525452544).

The spelling of 20312231242 in words is "twenty billion, three hundred twelve million, two hundred thirty-one thousand, two hundred forty-two".