235421005011 has 4 divisors (see below), whose sum is σ = 313894673352. Its totient is φ = 156947336672.

The previous prime is 235421005003. The next prime is 235421005049. The reversal of 235421005011 is 110500124532.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 235421005011 - 2³ = 235421005003 is a prime.

It is a super-2 number, since 2×235421005011² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (235421005081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39236834166 + ... + 39236834171.

It is an arithmetic number, because the mean of its divisors is an integer number (78473668338).

Almost surely, 2^235421005011 is an apocalyptic number.

235421005011 is a deficient number, since it is larger than the sum of its proper divisors (78473668341).

235421005011 is an equidigital number, since it uses as much as digits as its factorization.

235421005011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78473668340.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 235421005011 its reverse (110500124532), we get a palindrome (345921129543).

The spelling of 235421005011 in words is "two hundred thirty-five billion, four hundred twenty-one million, five thousand, eleven".