1043425554091 has 2 divisors, whose sum is σ = 1043425554092. Its totient is φ = 1043425554090.

The previous prime is 1043425554049. The next prime is 1043425554131. The reversal of 1043425554091 is 1904555243401.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1904555243401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043425554091 is a prime.

It is a super-2 number, since 2×1043425554091² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1043425554791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521712777045 + 521712777046.

It is an arithmetic number, because the mean of its divisors is an integer number (521712777046).

Almost surely, 2^{1043425554091} is an apocalyptic number.

1043425554091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043425554091 is an equidigital number, since it uses as much as digits as its factorization.

1043425554091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 1043425554091 in words is "one trillion, forty-three billion, four hundred twenty-five million, five hundred fifty-four thousand, ninety-one".