142220304131 has 6 divisors (see below), whose sum is σ = 151078316460. Its totient is φ = 133854403616.

The previous prime is 142220304103. The next prime is 142220304137. The reversal of 142220304131 is 131403022241.

It is not a de Polignac number, because 142220304131 - 2¹⁸ = 142220041987 is a prime.

It is a super-2 number, since 2×142220304131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142220304097 and 142220304106.

It is not an unprimeable number, because it can be changed into a prime (142220304137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246055601 + ... + 246056178.

It is an arithmetic number, because the mean of its divisors is an integer number (25179719410).

Almost surely, 2^142220304131 is an apocalyptic number.

142220304131 is a deficient number, since it is larger than the sum of its proper divisors (8858012329).

142220304131 is an equidigital number, since it uses as much as digits as its factorization.

142220304131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492111813 (or 492111796 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 142220304131 its reverse (131403022241), we get a palindrome (273623326372).

The spelling of 142220304131 in words is "one hundred forty-two billion, two hundred twenty million, three hundred four thousand, one hundred thirty-one".