20013000302131 has 4 divisors (see below), whose sum is σ = 20196605809600. Its totient is φ = 19829394794664.

The previous prime is 20013000302059. The next prime is 20013000302153. The reversal of 20013000302131 is 13120300031002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20013000302131 - 2¹³ = 20013000293939 is a prime.

It is a super-2 number, since 2×20013000302131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013000902131) 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, 91802753571 + ... + 91802753788.

It is an arithmetic number, because the mean of its divisors is an integer number (5049151452400).

Almost surely, 2^{20013000302131} is an apocalyptic number.

20013000302131 is a deficient number, since it is larger than the sum of its proper divisors (183605507469).

20013000302131 is a wasteful number, since it uses less digits than its factorization.

20013000302131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183605507468.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20013000302131 its reverse (13120300031002), we get a palindrome (33133300333133).

The spelling of 20013000302131 in words is "twenty trillion, thirteen billion, three hundred two thousand, one hundred thirty-one".