230426537221 has 2 divisors, whose sum is σ = 230426537222. Its totient is φ = 230426537220.

The previous prime is 230426537203. The next prime is 230426537233. The reversal of 230426537221 is 122735624032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228990960900 + 1435576321 = 478530^2 + 37889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230426537221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230426537321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115213268610 + 115213268611.

It is an arithmetic number, because the mean of its divisors is an integer number (115213268611).

Almost surely, 2^230426537221 is an apocalyptic number.

It is an amenable number.

230426537221 is a deficient number, since it is larger than the sum of its proper divisors (1).

230426537221 is an equidigital number, since it uses as much as digits as its factorization.

230426537221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 230426537221 in words is "two hundred thirty billion, four hundred twenty-six million, five hundred thirty-seven thousand, two hundred twenty-one".