125020331543 has 2 divisors, whose sum is σ = 125020331544. Its totient is φ = 125020331542.

The previous prime is 125020331507. The next prime is 125020331561. The reversal of 125020331543 is 345133020521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125020331543 - 2¹⁴ = 125020315159 is a prime.

It is a super-4 number, since 4×125020331543⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125020331243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62510165771 + 62510165772.

It is an arithmetic number, because the mean of its divisors is an integer number (62510165772).

Almost surely, 2^125020331543 is an apocalyptic number.

125020331543 is a deficient number, since it is larger than the sum of its proper divisors (1).

125020331543 is an equidigital number, since it uses as much as digits as its factorization.

125020331543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 125020331543 in words is "one hundred twenty-five billion, twenty million, three hundred thirty-one thousand, five hundred forty-three".