234021013134431 has 4 divisors (see below), whose sum is σ = 234028545465000. Its totient is φ = 234013480803864.

The previous prime is 234021013134409. The next prime is 234021013134487. The reversal of 234021013134431 is 134431310120432.

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 234021013134431 - 2⁶ = 234021013134367 is a prime.

It is a super-2 number, since 2×234021013134431² (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 (234021013134631) 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, 3766118681 + ... + 3766180818.

It is an arithmetic number, because the mean of its divisors is an integer number (58507136366250).

Almost surely, 2^{234021013134431} is an apocalyptic number.

234021013134431 is a deficient number, since it is larger than the sum of its proper divisors (7532330569).

234021013134431 is an equidigital number, since it uses as much as digits as its factorization.

234021013134431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7532330568.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 234021013134431 its reverse (134431310120432), we get a palindrome (368452323254863).

The spelling of 234021013134431 in words is "two hundred thirty-four trillion, twenty-one billion, thirteen million, one hundred thirty-four thousand, four hundred thirty-one".