126104732321 has 8 divisors (see below), whose sum is σ = 130205985024. Its totient is φ = 122005564560.

The previous prime is 126104732309. The next prime is 126104732329. The reversal of 126104732321 is 123237401621.

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

It is a cyclic number.

It is not a de Polignac number, because 126104732321 - 2¹⁴ = 126104715937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126104732329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397835 + ... + 640688.

It is an arithmetic number, because the mean of its divisors is an integer number (16275748128).

Almost surely, 2^126104732321 is an apocalyptic number.

It is an amenable number.

126104732321 is a deficient number, since it is larger than the sum of its proper divisors (4101252703).

126104732321 is a wasteful number, since it uses less digits than its factorization.

126104732321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042471.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 126104732321 in words is "one hundred twenty-six billion, one hundred four million, seven hundred thirty-two thousand, three hundred twenty-one".