234364242781 has 2 divisors, whose sum is σ = 234364242782. Its totient is φ = 234364242780.

The previous prime is 234364242773. The next prime is 234364242817. The reversal of 234364242781 is 187242463432.

234364242781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (234364242817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199192616100 + 35171626681 = 446310^2 + 187541^2 .

It is a cyclic number.

It is not a de Polignac number, because 234364242781 - 2³ = 234364242773 is a prime.

It is a super-2 number, since 2×234364242781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234364242701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117182121390 + 117182121391.

It is an arithmetic number, because the mean of its divisors is an integer number (117182121391).

Almost surely, 2^234364242781 is an apocalyptic number.

It is an amenable number.

234364242781 is a deficient number, since it is larger than the sum of its proper divisors (1).

234364242781 is an equidigital number, since it uses as much as digits as its factorization.

234364242781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 46.

The spelling of 234364242781 in words is "two hundred thirty-four billion, three hundred sixty-four million, two hundred forty-two thousand, seven hundred eighty-one".