235155131421 has 8 divisors (see below), whose sum is σ = 358331628864. Its totient is φ = 134374360800.

The previous prime is 235155131411. The next prime is 235155131461. The reversal of 235155131421 is 124131551532.

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

It is not a de Polignac number, because 235155131421 - 2¹⁴ = 235155115037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235155131411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5598931680 + ... + 5598931721.

It is an arithmetic number, because the mean of its divisors is an integer number (44791453608).

Almost surely, 2^235155131421 is an apocalyptic number.

235155131421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

235155131421 is a deficient number, since it is larger than the sum of its proper divisors (123176497443).

235155131421 is a wasteful number, since it uses less digits than its factorization.

235155131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11197863411.

The product of its digits is 18000, while the sum is 33.

Adding to 235155131421 its reverse (124131551532), we get a palindrome (359286682953).

The spelling of 235155131421 in words is "two hundred thirty-five billion, one hundred fifty-five million, one hundred thirty-one thousand, four hundred twenty-one".