235040311405 has 8 divisors (see below), whose sum is σ = 282178904184. Its totient is φ = 187945228800.

The previous prime is 235040311381. The next prime is 235040311439. The reversal of 235040311405 is 504113040532.

It can be written as a sum of positive squares in 4 ways, for example, as 115669370404 + 119370941001 = 340102^2 + 345501^2 .

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

It is not a de Polignac number, because 235040311405 - 2²⁵ = 235006756973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10865656 + ... + 10887265.

It is an arithmetic number, because the mean of its divisors is an integer number (35272363023).

Almost surely, 2^235040311405 is an apocalyptic number.

It is an amenable number.

235040311405 is a deficient number, since it is larger than the sum of its proper divisors (47138592779).

235040311405 is a wasteful number, since it uses less digits than its factorization.

235040311405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21755087.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 235040311405 its reverse (504113040532), we get a palindrome (739153351937).

The spelling of 235040311405 in words is "two hundred thirty-five billion, forty million, three hundred eleven thousand, four hundred five".