121632500613 has 16 divisors (see below), whose sum is σ = 177611999040. Its totient is φ = 73582111104.

The previous prime is 121632500603. The next prime is 121632500623. The reversal of 121632500613 is 316005236121.

It is an interprime number because it is at equal distance from previous prime (121632500603) and next prime (121632500623).

It is a de Polignac number, because none of the positive numbers 2^k-121632500613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121632500603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26428056 + ... + 26432657.

It is an arithmetic number, because the mean of its divisors is an integer number (11100749940).

Almost surely, 2^121632500613 is an apocalyptic number.

121632500613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121632500613 is a deficient number, since it is larger than the sum of its proper divisors (55979498427).

121632500613 is a wasteful number, since it uses less digits than its factorization.

121632500613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52860788.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 121632500613 its reverse (316005236121), we get a palindrome (437637736734).

The spelling of 121632500613 in words is "one hundred twenty-one billion, six hundred thirty-two million, five hundred thousand, six hundred thirteen".