133123421533535 has 8 divisors (see below), whose sum is σ = 159749258168016. Its totient is φ = 106497969008320.

The previous prime is 133123421533519. The next prime is 133123421533537. The reversal of 133123421533535 is 535335124321331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133123421533535 - 2⁴ = 133123421533519 is a prime.

It is a super-2 number, since 2×133123421533535² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133123421533537) 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, 95264294 + ... + 96651603.

It is an arithmetic number, because the mean of its divisors is an integer number (19968657271002).

Almost surely, 2^{133123421533535} is an apocalyptic number.

133123421533535 is a deficient number, since it is larger than the sum of its proper divisors (26625836634481).

133123421533535 is a wasteful number, since it uses less digits than its factorization.

133123421533535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192054633.

The product of its digits is 1458000, while the sum is 44.

Adding to 133123421533535 its reverse (535335124321331), we get a palindrome (668458545854866).

The spelling of 133123421533535 in words is "one hundred thirty-three trillion, one hundred twenty-three billion, four hundred twenty-one million, five hundred thirty-three thousand, five hundred thirty-five".