118431511103 has 2 divisors, whose sum is σ = 118431511104. Its totient is φ = 118431511102.

The previous prime is 118431511069. The next prime is 118431511117. The reversal of 118431511103 is 301115134811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118431511103 - 2¹⁰ = 118431510079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118431511183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59215755551 + 59215755552.

It is an arithmetic number, because the mean of its divisors is an integer number (59215755552).

Almost surely, 2^118431511103 is an apocalyptic number.

118431511103 is a deficient number, since it is larger than the sum of its proper divisors (1).

118431511103 is an equidigital number, since it uses as much as digits as its factorization.

118431511103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 29.

Adding to 118431511103 its reverse (301115134811), we get a palindrome (419546645914).

The spelling of 118431511103 in words is "one hundred eighteen billion, four hundred thirty-one million, five hundred eleven thousand, one hundred three".