125410200121 has 2 divisors, whose sum is σ = 125410200122. Its totient is φ = 125410200120.

The previous prime is 125410200109. The next prime is 125410200133. The reversal of 125410200121 is 121002014521.

It is a balanced prime because it is at equal distance from previous prime (125410200109) and next prime (125410200133).

It can be written as a sum of positive squares in only one way, i.e., 117159021225 + 8251178896 = 342285^2 + 90836^2 .

It is a cyclic number.

It is not a de Polignac number, because 125410200121 - 2⁵ = 125410200089 is a prime.

It is a super-4 number, since 4×125410200121⁴ (a number of 45 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (125410200101) 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 as a sum of consecutive naturals, namely, 62705100060 + 62705100061.

It is an arithmetic number, because the mean of its divisors is an integer number (62705100061).

Almost surely, 2^125410200121 is an apocalyptic number.

It is an amenable number.

125410200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

125410200121 is an equidigital number, since it uses as much as digits as its factorization.

125410200121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 125410200121 its reverse (121002014521), we get a palindrome (246412214642).

The spelling of 125410200121 in words is "one hundred twenty-five billion, four hundred ten million, two hundred thousand, one hundred twenty-one".