133021441423 has 4 divisors (see below), whose sum is σ = 143253860008. Its totient is φ = 122789022840.

The previous prime is 133021441381. The next prime is 133021441433. The reversal of 133021441423 is 324144120331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 133021441423 - 2¹⁷ = 133021310351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133021441391 and 133021441400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133021441433) 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, 5116209273 + ... + 5116209298.

It is an arithmetic number, because the mean of its divisors is an integer number (35813465002).

Almost surely, 2^133021441423 is an apocalyptic number.

133021441423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133021441423 is a deficient number, since it is larger than the sum of its proper divisors (10232418585).

133021441423 is a wasteful number, since it uses less digits than its factorization.

133021441423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10232418584.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 133021441423 its reverse (324144120331), we get a palindrome (457165561754).

The spelling of 133021441423 in words is "one hundred thirty-three billion, twenty-one million, four hundred forty-one thousand, four hundred twenty-three".