125442034123 has 16 divisors (see below), whose sum is σ = 145619030016. Its totient is φ = 105834163680.

The previous prime is 125442034051. The next prime is 125442034141. The reversal of 125442034123 is 321430244521.

It is not a de Polignac number, because 125442034123 - 2²¹ = 125439936971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125442034163) 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, 98790 + ... + 510532.

It is an arithmetic number, because the mean of its divisors is an integer number (9101189376).

Almost surely, 2^125442034123 is an apocalyptic number.

125442034123 is a deficient number, since it is larger than the sum of its proper divisors (20176995893).

125442034123 is an equidigital number, since it uses as much as digits as its factorization.

125442034123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412434.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 125442034123 its reverse (321430244521), we get a palindrome (446872278644).

The spelling of 125442034123 in words is "one hundred twenty-five billion, four hundred forty-two million, thirty-four thousand, one hundred twenty-three".