125142335534023 has 24 divisors (see below), whose sum is σ = 133785890426160. Its totient is φ = 116732432073600.

The previous prime is 125142335533991. The next prime is 125142335534039. The reversal of 125142335534023 is 320435533241521.

It is not a de Polignac number, because 125142335534023 - 2⁵ = 125142335533991 is a prime.

It is a super-2 number, since 2×125142335534023² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125142335532023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72029361 + ... + 73746277.

It is an arithmetic number, because the mean of its divisors is an integer number (5574412101090).

Almost surely, 2^{125142335534023} is an apocalyptic number.

125142335534023 is a deficient number, since it is larger than the sum of its proper divisors (8643554892137).

125142335534023 is an equidigital number, since it uses as much as digits as its factorization.

125142335534023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717839 (or 1717768 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 43.

Adding to 125142335534023 its reverse (320435533241521), we get a palindrome (445577868775544).

The spelling of 125142335534023 in words is "one hundred twenty-five trillion, one hundred forty-two billion, three hundred thirty-five million, five hundred thirty-four thousand, twenty-three".