133213566100 has 36 divisors (see below), whose sum is σ = 289161568864. Its totient is φ = 53269181280.

The previous prime is 133213566053. The next prime is 133213566103. The reversal of 133213566100 is 1665312331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133213566103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129289 + ... + 532111.

Almost surely, 2^133213566100 is an apocalyptic number.

133213566100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133213566100 is an abundant number, since it is smaller than the sum of its proper divisors (155948002764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133213566100 is a wasteful number, since it uses less digits than its factorization.

133213566100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406144 (or 406137 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 133213566100 its reverse (1665312331), we get a palindrome (134878878431).

The spelling of 133213566100 in words is "one hundred thirty-three billion, two hundred thirteen million, five hundred sixty-six thousand, one hundred".