118208511451 has 2 divisors, whose sum is σ = 118208511452. Its totient is φ = 118208511450.

The previous prime is 118208511437. The next prime is 118208511497. The reversal of 118208511451 is 154115802811.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (154115802811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118208511451 - 2¹⁷ = 118208380379 is a prime.

It is a super-2 number, since 2×118208511451² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 118208511451.

It is not a weakly prime, because it can be changed into another prime (118208511851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59104255725 + 59104255726.

It is an arithmetic number, because the mean of its divisors is an integer number (59104255726).

Almost surely, 2^118208511451 is an apocalyptic number.

118208511451 is a deficient number, since it is larger than the sum of its proper divisors (1).

118208511451 is an equidigital number, since it uses as much as digits as its factorization.

118208511451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 37.

The spelling of 118208511451 in words is "one hundred eighteen billion, two hundred eight million, five hundred eleven thousand, four hundred fifty-one".