234254431640421 has 12 divisors (see below), whose sum is σ = 341717685760620. Its totient is φ = 154623387220800.

The previous prime is 234254431640419. The next prime is 234254431640423. The reversal of 234254431640421 is 124046134452432.

234254431640421 is a `hidden beast` number, since 2 + 3 + 4 + 2 + 5 + 443 + 164 + 0 + 42 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (234254431640419) and next prime (234254431640423).

It can be written as a sum of positive squares in 2 ways, for example, as 187367202509796 + 46887229130625 = 13688214^2 + 6847425^2 .

It is not a de Polignac number, because 234254431640421 - 2¹ = 234254431640419 is a prime.

It is a super-3 number, since 3×234254431640421³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234254431640423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128852821776 + ... + 128852823593.

It is an arithmetic number, because the mean of its divisors is an integer number (28476473813385).

Almost surely, 2^{234254431640421} is an apocalyptic number.

It is an amenable number.

234254431640421 is a deficient number, since it is larger than the sum of its proper divisors (107463254120199).

234254431640421 is a wasteful number, since it uses less digits than its factorization.

234254431640421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257705645476 (or 257705645473 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 45.

The spelling of 234254431640421 in words is "two hundred thirty-four trillion, two hundred fifty-four billion, four hundred thirty-one million, six hundred forty thousand, four hundred twenty-one".