125343443501 has 2 divisors, whose sum is σ = 125343443502. Its totient is φ = 125343443500.

The previous prime is 125343443453. The next prime is 125343443507. The reversal of 125343443501 is 105344343521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78217546276 + 47125897225 = 279674^2 + 217085^2 .

It is a cyclic number.

It is not a de Polignac number, because 125343443501 - 2¹⁴ = 125343427117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125343443507) 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, 62671721750 + 62671721751.

It is an arithmetic number, because the mean of its divisors is an integer number (62671721751).

Almost surely, 2^125343443501 is an apocalyptic number.

It is an amenable number.

125343443501 is a deficient number, since it is larger than the sum of its proper divisors (1).

125343443501 is an equidigital number, since it uses as much as digits as its factorization.

125343443501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 125343443501 in words is "one hundred twenty-five billion, three hundred forty-three million, four hundred forty-three thousand, five hundred one".