43254423061 has 2 divisors, whose sum is σ = 43254423062. Its totient is φ = 43254423060.

The previous prime is 43254423049. The next prime is 43254423067. The reversal of 43254423061 is 16032445234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39668688900 + 3585734161 = 199170^2 + 59881^2 .

It is a cyclic number.

It is not a de Polignac number, because 43254423061 - 2⁵ = 43254423029 is a prime.

It is a super-2 number, since 2×43254423061² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43254423067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21627211530 + 21627211531.

It is an arithmetic number, because the mean of its divisors is an integer number (21627211531).

Almost surely, 2^43254423061 is an apocalyptic number.

It is an amenable number.

43254423061 is a deficient number, since it is larger than the sum of its proper divisors (1).

43254423061 is an equidigital number, since it uses as much as digits as its factorization.

43254423061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 43254423061 its reverse (16032445234), we get a palindrome (59286868295).

The spelling of 43254423061 in words is "forty-three billion, two hundred fifty-four million, four hundred twenty-three thousand, sixty-one".