125605431543122 has 8 divisors (see below), whose sum is σ = 188408310768972. Its totient is φ = 62802661286800.

The previous prime is 125605431543107. The next prime is 125605431543131. The reversal of 125605431543122 is 221345134506521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114909202424041 + 10696229119081 = 10719571^2 + 3270509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×125605431543122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24297029 + ... + 29009592.

Almost surely, 2^{125605431543122} is an apocalyptic number.

125605431543122 is a deficient number, since it is larger than the sum of its proper divisors (62802879225850).

125605431543122 is a wasteful number, since it uses less digits than its factorization.

125605431543122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54484764.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 125605431543122 in words is "one hundred twenty-five trillion, six hundred five billion, four hundred thirty-one million, five hundred forty-three thousand, one hundred twenty-two".