125251332443 has 4 divisors (see below), whose sum is σ = 125253480000. Its totient is φ = 125249184888.

The previous prime is 125251332431. The next prime is 125251332457. The reversal of 125251332443 is 344233152521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344233152521 = 487387 ⋅706283.

It is a cyclic number.

It is not a de Polignac number, because 125251332443 - 2⁶ = 125251332379 is a prime.

It is a super-3 number, since 3×125251332443³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125251362443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983780 + ... + 1103777.

It is an arithmetic number, because the mean of its divisors is an integer number (31313370000).

Almost surely, 2^125251332443 is an apocalyptic number.

125251332443 is a deficient number, since it is larger than the sum of its proper divisors (2147557).

125251332443 is an equidigital number, since it uses as much as digits as its factorization.

125251332443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147556.

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

Adding to 125251332443 its reverse (344233152521), we get a palindrome (469484484964).

The spelling of 125251332443 in words is "one hundred twenty-five billion, two hundred fifty-one million, three hundred thirty-two thousand, four hundred forty-three".