235809477311 has 2 divisors, whose sum is σ = 235809477312. Its totient is φ = 235809477310.

The previous prime is 235809477251. The next prime is 235809477391. The reversal of 235809477311 is 113774908532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 235809477311 - 2⁶ = 235809477247 is a prime.

It is a super-2 number, since 2×235809477311² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 235809477311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235809477391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117904738655 + 117904738656.

It is an arithmetic number, because the mean of its divisors is an integer number (117904738656).

Almost surely, 2^235809477311 is an apocalyptic number.

235809477311 is a deficient number, since it is larger than the sum of its proper divisors (1).

235809477311 is an equidigital number, since it uses as much as digits as its factorization.

235809477311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 235809477311 in words is "two hundred thirty-five billion, eight hundred nine million, four hundred seventy-seven thousand, three hundred eleven".