20200321131 has 8 divisors (see below), whose sum is σ = 26960353680. Its totient is φ = 13453584672.

The previous prime is 20200321121. The next prime is 20200321139. The reversal of 20200321131 is 13112300202.

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

It is not a de Polignac number, because 20200321131 - 2¹³ = 20200312939 is a prime.

It is a super-2 number, since 2×20200321131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20200321131.

It is not an unprimeable number, because it can be changed into a prime (20200321139) 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, 3320476 + ... + 3326553.

It is an arithmetic number, because the mean of its divisors is an integer number (3370044210).

Almost surely, 2^20200321131 is an apocalyptic number.

20200321131 is a deficient number, since it is larger than the sum of its proper divisors (6760032549).

20200321131 is a wasteful number, since it uses less digits than its factorization.

20200321131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6648045.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20200321131 its reverse (13112300202), we get a palindrome (33312621333).

The spelling of 20200321131 in words is "twenty billion, two hundred million, three hundred twenty-one thousand, one hundred thirty-one".