234212307643381 has 4 divisors (see below), whose sum is σ = 234212939888032. Its totient is φ = 234211675398732.

The previous prime is 234212307643367. The next prime is 234212307643399. The reversal of 234212307643381 is 183346703212432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234212307643381 is a prime.

It is a super-2 number, since 2×234212307643381² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234212307649381) 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, 315566331 + ... + 316307656.

It is an arithmetic number, because the mean of its divisors is an integer number (58553234972008).

Almost surely, 2^{234212307643381} is an apocalyptic number.

It is an amenable number.

234212307643381 is a deficient number, since it is larger than the sum of its proper divisors (632244651).

234212307643381 is an equidigital number, since it uses as much as digits as its factorization.

234212307643381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632244650.

The product of its (nonzero) digits is 3483648, while the sum is 49.

The spelling of 234212307643381 in words is "two hundred thirty-four trillion, two hundred twelve billion, three hundred seven million, six hundred forty-three thousand, three hundred eighty-one".