125543501323 has 16 divisors (see below), whose sum is σ = 131995180800. Its totient is φ = 119175265440.

The previous prime is 125543501273. The next prime is 125543501339. The reversal of 125543501323 is 323105345521.

It is not a de Polignac number, because 125543501323 - 2²¹ = 125541404171 is a prime.

It is a super-2 number, since 2×125543501323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125543501383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10643313 + ... + 10655101.

It is an arithmetic number, because the mean of its divisors is an integer number (8249698800).

Almost surely, 2^125543501323 is an apocalyptic number.

125543501323 is a deficient number, since it is larger than the sum of its proper divisors (6451679477).

125543501323 is a wasteful number, since it uses less digits than its factorization.

125543501323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15282.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 125543501323 its reverse (323105345521), we get a palindrome (448648846844).

The spelling of 125543501323 in words is "one hundred twenty-five billion, five hundred forty-three million, five hundred one thousand, three hundred twenty-three".