133523223454106 has 4 divisors (see below), whose sum is σ = 200284835181162. Its totient is φ = 66761611727052.

The previous prime is 133523223454097. The next prime is 133523223454111. The reversal of 133523223454106 is 601454322325331.

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

It can be written as a sum of positive squares in only one way, i.e., 88649851314025 + 44873372140081 = 9415405^2 + 6698759^2 .

It is a super-2 number, since 2×133523223454106² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33380805863525 + ... + 33380805863528.

Almost surely, 2^{133523223454106} is an apocalyptic number.

133523223454106 is a deficient number, since it is larger than the sum of its proper divisors (66761611727056).

133523223454106 is an equidigital number, since it uses as much as digits as its factorization.

133523223454106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66761611727055.

The product of its (nonzero) digits is 1555200, while the sum is 44.

Adding to 133523223454106 its reverse (601454322325331), we get a palindrome (734977545779437).

The spelling of 133523223454106 in words is "one hundred thirty-three trillion, five hundred twenty-three billion, two hundred twenty-three million, four hundred fifty-four thousand, one hundred six".