104220120131 has 4 divisors (see below), whose sum is σ = 104382710664. Its totient is φ = 104057529600.

The previous prime is 104220120113. The next prime is 104220120157. The reversal of 104220120131 is 131021022401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104220120131 is a prime.

It is a super-2 number, since 2×104220120131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104220120161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81294305 + ... + 81295586.

It is an arithmetic number, because the mean of its divisors is an integer number (26095677666).

Almost surely, 2^104220120131 is an apocalyptic number.

104220120131 is a deficient number, since it is larger than the sum of its proper divisors (162590533).

104220120131 is an equidigital number, since it uses as much as digits as its factorization.

104220120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162590532.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 104220120131 its reverse (131021022401), we get a palindrome (235241142532).

The spelling of 104220120131 in words is "one hundred four billion, two hundred twenty million, one hundred twenty thousand, one hundred thirty-one".