133202121320 has 32 divisors (see below), whose sum is σ = 299768574600. Its totient is φ = 53269506048.

The previous prime is 133202121319. The next prime is 133202121323. The reversal of 133202121320 is 23121202331.

It can be written as a sum of positive squares in 4 ways, for example, as 111971882884 + 21230238436 = 334622^2 + 145706^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 133202121292 and 133202121301.

It is not an unprimeable number, because it can be changed into a prime (133202121323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162929 + ... + 541248.

Almost surely, 2^133202121320 is an apocalyptic number.

133202121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133202121320 is an abundant number, since it is smaller than the sum of its proper divisors (166566453280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133202121320 is a wasteful number, since it uses less digits than its factorization.

133202121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708917 (or 708913 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 133202121320 its reverse (23121202331), we get a palindrome (156323323651).

The spelling of 133202121320 in words is "one hundred thirty-three billion, two hundred two million, one hundred twenty-one thousand, three hundred twenty".