115651620323 has 4 divisors (see below), whose sum is σ = 115652342520. Its totient is φ = 115650898128.

The previous prime is 115651620311. The next prime is 115651620439. The reversal of 115651620323 is 323026156511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 323026156511 = 357619 ⋅903269.

It is a cyclic number.

It is not a de Polignac number, because 115651620323 - 2¹⁰ = 115651619299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115651620523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1565 + ... + 480942.

It is an arithmetic number, because the mean of its divisors is an integer number (28913085630).

Almost surely, 2^115651620323 is an apocalyptic number.

115651620323 is a deficient number, since it is larger than the sum of its proper divisors (722197).

115651620323 is an equidigital number, since it uses as much as digits as its factorization.

115651620323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722196.

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 115651620323 its reverse (323026156511), we get a palindrome (438677776834).

The spelling of 115651620323 in words is "one hundred fifteen billion, six hundred fifty-one million, six hundred twenty thousand, three hundred twenty-three".