201423747126433 has 16 divisors (see below), whose sum is σ = 217854233447760. Its totient is φ = 185127064740864.

The previous prime is 201423747126419. The next prime is 201423747126463. The reversal of 201423747126433 is 334621747324102.

It can be written as a sum of positive squares in 8 ways, for example, as 33704852025744 + 167718895100689 = 5805588^2 + 12950633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201423747126433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201423747126463) 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, 125185803 + ... + 126784591.

It is an arithmetic number, because the mean of its divisors is an integer number (13615889590485).

Almost surely, 2^{201423747126433} is an apocalyptic number.

It is an amenable number.

201423747126433 is a deficient number, since it is larger than the sum of its proper divisors (16430486321327).

201423747126433 is a wasteful number, since it uses less digits than its factorization.

201423747126433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640628.

The product of its (nonzero) digits is 4064256, while the sum is 49.

The spelling of 201423747126433 in words is "two hundred one trillion, four hundred twenty-three billion, seven hundred forty-seven million, one hundred twenty-six thousand, four hundred thirty-three".