1188254129443 has 2 divisors, whose sum is σ = 1188254129444. Its totient is φ = 1188254129442.

The previous prime is 1188254129431. The next prime is 1188254129453. The reversal of 1188254129443 is 3449214528811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1188254129443 is a prime.

It is a super-2 number, since 2×1188254129443² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1188254129453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594127064721 + 594127064722.

It is an arithmetic number, because the mean of its divisors is an integer number (594127064722).

Almost surely, 2^{1188254129443} is an apocalyptic number.

1188254129443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1188254129443 is an equidigital number, since it uses as much as digits as its factorization.

1188254129443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2211840, while the sum is 52.

The spelling of 1188254129443 in words is "one trillion, one hundred eighty-eight billion, two hundred fifty-four million, one hundred twenty-nine thousand, four hundred forty-three".