20312636311434 has 8 divisors (see below), whose sum is σ = 40625272622880. Its totient is φ = 6770878770476.

The previous prime is 20312636311411. The next prime is 20312636311447. The reversal of 20312636311434 is 43411363621302.

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

20312636311434 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20312636311392 and 20312636311401.

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, 1692719692614 + ... + 1692719692625.

It is an arithmetic number, because the mean of its divisors is an integer number (5078159077860).

Almost surely, 2^{20312636311434} is an apocalyptic number.

20312636311434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312636311434 is a wasteful number, since it uses less digits than its factorization.

20312636311434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385439385244.

The product of its (nonzero) digits is 186624, while the sum is 39.

Adding to 20312636311434 its reverse (43411363621302), we get a palindrome (63723999932736).

The spelling of 20312636311434 in words is "twenty trillion, three hundred twelve billion, six hundred thirty-six million, three hundred eleven thousand, four hundred thirty-four".