20315412031533 has 8 divisors (see below), whose sum is σ = 28680581691648. Its totient is φ = 12746925196224.

The previous prime is 20315412031531. The next prime is 20315412031559. The reversal of 20315412031533 is 33513021451302.

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

It is not a de Polignac number, because 20315412031533 - 2¹ = 20315412031531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20315412031494 and 20315412031503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315412031531) 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, 199170706141 + ... + 199170706242.

It is an arithmetic number, because the mean of its divisors is an integer number (3585072711456).

Almost surely, 2^{20315412031533} is an apocalyptic number.

It is an amenable number.

20315412031533 is a deficient number, since it is larger than the sum of its proper divisors (8365169660115).

20315412031533 is a wasteful number, since it uses less digits than its factorization.

20315412031533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398341412403.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 20315412031533 its reverse (33513021451302), we get a palindrome (53828433482835).

The spelling of 20315412031533 in words is "twenty trillion, three hundred fifteen billion, four hundred twelve million, thirty-one thousand, five hundred thirty-three".