20054103131 has 4 divisors (see below), whose sum is σ = 20086818432. Its totient is φ = 20021387832.

The previous prime is 20054103103. The next prime is 20054103151. The reversal of 20054103131 is 13130145002.

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 20054103131 - 2²⁶ = 19986994267 is a prime.

It is a super-2 number, since 2×20054103131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20054103101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16356731 + ... + 16357956.

It is an arithmetic number, because the mean of its divisors is an integer number (5021704608).

Almost surely, 2^20054103131 is an apocalyptic number.

20054103131 is a deficient number, since it is larger than the sum of its proper divisors (32715301).

20054103131 is an equidigital number, since it uses as much as digits as its factorization.

20054103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32715300.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 20054103131 its reverse (13130145002), we get a palindrome (33184248133).

The spelling of 20054103131 in words is "twenty billion, fifty-four million, one hundred three thousand, one hundred thirty-one".