116421553203 has 32 divisors (see below), whose sum is σ = 171904591872. Its totient is φ = 69710361600.

The previous prime is 116421553189. The next prime is 116421553217. The reversal of 116421553203 is 302355124611.

It is an interprime number because it is at equal distance from previous prime (116421553189) and next prime (116421553217).

It is not a de Polignac number, because 116421553203 - 2¹⁸ = 116421291059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116421553273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390423 + ... + 620703.

It is an arithmetic number, because the mean of its divisors is an integer number (5372018496).

Almost surely, 2^116421553203 is an apocalyptic number.

116421553203 is a deficient number, since it is larger than the sum of its proper divisors (55483038669).

116421553203 is a wasteful number, since it uses less digits than its factorization.

116421553203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230755.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 116421553203 its reverse (302355124611), we get a palindrome (418776677814).

The spelling of 116421553203 in words is "one hundred sixteen billion, four hundred twenty-one million, five hundred fifty-three thousand, two hundred three".