243016074428251 has 2 divisors, whose sum is σ = 243016074428252. Its totient is φ = 243016074428250.

The previous prime is 243016074428213. The next prime is 243016074428261. The reversal of 243016074428251 is 152824470610342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243016074428251 - 2¹⁹ = 243016073903963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243016074428195 and 243016074428204.

It is not a weakly prime, because it can be changed into another prime (243016074428261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121508037214125 + 121508037214126.

It is an arithmetic number, because the mean of its divisors is an integer number (121508037214126).

Almost surely, 2^{243016074428251} is an apocalyptic number.

243016074428251 is a deficient number, since it is larger than the sum of its proper divisors (1).

243016074428251 is an equidigital number, since it uses as much as digits as its factorization.

243016074428251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 49.

The spelling of 243016074428251 in words is "two hundred forty-three trillion, sixteen billion, seventy-four million, four hundred twenty-eight thousand, two hundred fifty-one".