133111114021421 has 4 divisors (see below), whose sum is σ = 133112819755644. Its totient is φ = 133109408287200.

The previous prime is 133111114021351. The next prime is 133111114021439. The reversal of 133111114021421 is 124120411111331.

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 9155980033225 + 123955133988196 = 3025885^2 + 11133514^2 .

It is a cyclic number.

It is not a de Polignac number, because 133111114021421 - 2¹⁰ = 133111114020397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133111114021481) 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, 852750050 + ... + 852906131.

It is an arithmetic number, because the mean of its divisors is an integer number (33278204938911).

Almost surely, 2^{133111114021421} is an apocalyptic number.

It is an amenable number.

133111114021421 is a deficient number, since it is larger than the sum of its proper divisors (1705734223).

133111114021421 is an equidigital number, since it uses as much as digits as its factorization.

133111114021421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705734222.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 133111114021421 its reverse (124120411111331), we get a palindrome (257231525132752).

The spelling of 133111114021421 in words is "one hundred thirty-three trillion, one hundred eleven billion, one hundred fourteen million, twenty-one thousand, four hundred twenty-one".