125123142403342 has 16 divisors (see below), whose sum is σ = 188159094350064. Its totient is φ = 62403454800000.

The previous prime is 125123142403333. The next prime is 125123142403361. The reversal of 125123142403342 is 243304241321521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21327292 + ... + 26553712.

It is an arithmetic number, because the mean of its divisors is an integer number (11759943396879).

Almost surely, 2^{125123142403342} is an apocalyptic number.

125123142403342 is a deficient number, since it is larger than the sum of its proper divisors (63035951946722).

125123142403342 is a wasteful number, since it uses less digits than its factorization.

125123142403342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256675.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 125123142403342 its reverse (243304241321521), we get a palindrome (368427383724863).

The spelling of 125123142403342 in words is "one hundred twenty-five trillion, one hundred twenty-three billion, one hundred forty-two million, four hundred three thousand, three hundred forty-two".