115243320503421 has 12 divisors (see below), whose sum is σ = 181595535338880. Its totient is φ = 69844436668680.

The previous prime is 115243320503357. The next prime is 115243320503471. The reversal of 115243320503421 is 124305023342511.

115243320503421 is a `hidden beast` number, since 1 + 1 + 5 + 24 + 3 + 3 + 205 + 0 + 3 + 421 = 666.

115243320503421 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 115243320503421 - 2⁶ = 115243320503357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115243320503471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582036972141 + ... + 582036972338.

It is an arithmetic number, because the mean of its divisors is an integer number (15132961278240).

Almost surely, 2^{115243320503421} is an apocalyptic number.

115243320503421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115243320503421 is a deficient number, since it is larger than the sum of its proper divisors (66352214835459).

115243320503421 is a wasteful number, since it uses less digits than its factorization.

115243320503421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164073944496 (or 1164073944493 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 115243320503421 its reverse (124305023342511), we get a palindrome (239548343845932).

The spelling of 115243320503421 in words is "one hundred fifteen trillion, two hundred forty-three billion, three hundred twenty million, five hundred three thousand, four hundred twenty-one".