20315434326121 has 8 divisors (see below), whose sum is σ = 22273660296000. Its totient is φ = 18375769740240.

The previous prime is 20315434326097. The next prime is 20315434326127. The reversal of 20315434326121 is 12162343451302.

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

It is not a de Polignac number, because 20315434326121 - 2⁷ = 20315434325993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20315434326127) 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, 4640343706 + ... + 4640348083.

It is an arithmetic number, because the mean of its divisors is an integer number (2784207537000).

Almost surely, 2^{20315434326121} is an apocalyptic number.

It is an amenable number.

20315434326121 is a deficient number, since it is larger than the sum of its proper divisors (1958225969879).

20315434326121 is a wasteful number, since it uses less digits than its factorization.

20315434326121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9280691999.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 20315434326121 its reverse (12162343451302), we get a palindrome (32477777777423).

The spelling of 20315434326121 in words is "twenty trillion, three hundred fifteen billion, four hundred thirty-four million, three hundred twenty-six thousand, one hundred twenty-one".