133121233464507 has 16 divisors (see below), whose sum is σ = 198151318207360. Its totient is φ = 88326884759400.

The previous prime is 133121233464497. The next prime is 133121233464511. The reversal of 133121233464507 is 705464332121331.

133121233464507 is a `hidden beast` number, since 1 + 3 + 3 + 12 + 123 + 3 + 4 + 6 + 4 + 507 = 666.

It is not a de Polignac number, because 133121233464507 - 2⁷ = 133121233464379 is a prime.

It is a super-2 number, since 2×133121233464507² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133121233464907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11683444669 + ... + 11683456062.

It is an arithmetic number, because the mean of its divisors is an integer number (12384457387960).

Almost surely, 2^{133121233464507} is an apocalyptic number.

133121233464507 is a deficient number, since it is larger than the sum of its proper divisors (65030084742853).

133121233464507 is a wasteful number, since it uses less digits than its factorization.

133121233464507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23366900951 (or 23366900945 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

Adding to 133121233464507 its reverse (705464332121331), we get a palindrome (838585565585838).

The spelling of 133121233464507 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, two hundred thirty-three million, four hundred sixty-four thousand, five hundred seven".