133103100210121 has 4 divisors (see below), whose sum is σ = 133159096468372. Its totient is φ = 133047103951872.

The previous prime is 133103100210103. The next prime is 133103100210127. The reversal of 133103100210121 is 121012001301331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58334843175625 + 74768257034496 = 7637725^2 + 8646864^2 .

It is a cyclic number.

It is not a de Polignac number, because 133103100210121 - 2⁷ = 133103100209993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133103100210127) 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, 27998125560 + ... + 27998130313.

It is an arithmetic number, because the mean of its divisors is an integer number (33289774117093).

Almost surely, 2^{133103100210121} is an apocalyptic number.

It is an amenable number.

133103100210121 is a deficient number, since it is larger than the sum of its proper divisors (55996258251).

133103100210121 is an equidigital number, since it uses as much as digits as its factorization.

133103100210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55996258250.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 133103100210121 its reverse (121012001301331), we get a palindrome (254115101511452).

The spelling of 133103100210121 in words is "one hundred thirty-three trillion, one hundred three billion, one hundred million, two hundred ten thousand, one hundred twenty-one".