125422020131 has 4 divisors (see below), whose sum is σ = 126379440264. Its totient is φ = 124464600000.

The previous prime is 125422020103. The next prime is 125422020133. The reversal of 125422020131 is 131020224521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131020224521 = 6719 ⋅19499959.

It is a cyclic number.

It is not a de Polignac number, because 125422020131 - 2⁶ = 125422020067 is a prime.

It is a super-2 number, since 2×125422020131² (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 = 125422020097 and 125422020106.

It is not an unprimeable number, because it can be changed into a prime (125422020133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478709870 + ... + 478710131.

It is an arithmetic number, because the mean of its divisors is an integer number (31594860066).

Almost surely, 2^125422020131 is an apocalyptic number.

125422020131 is a deficient number, since it is larger than the sum of its proper divisors (957420133).

125422020131 is an equidigital number, since it uses as much as digits as its factorization.

125422020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957420132.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 125422020131 its reverse (131020224521), we get a palindrome (256442244652).

The spelling of 125422020131 in words is "one hundred twenty-five billion, four hundred twenty-two million, twenty thousand, one hundred thirty-one".