133121110 has 16 divisors (see below), whose sum is σ = 243680400. Its totient is φ = 52345696.

The previous prime is 133121063. The next prime is 133121111. The reversal of 133121110 is 11121331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133121111) 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, 112225 + ... + 113404.

It is an arithmetic number, because the mean of its divisors is an integer number (15230025).

Almost surely, 2^133121110 is an apocalyptic number.

133121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133121110 is a deficient number, since it is larger than the sum of its proper divisors (110559290).

133121110 is a wasteful number, since it uses less digits than its factorization.

133121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225695.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 133121110 is about 11537.8121842921. The cubic root of 133121110 is about 510.6017630915.

Adding to 133121110 its reverse (11121331), we get a palindrome (144242441).

The spelling of 133121110 in words is "one hundred thirty-three million, one hundred twenty-one thousand, one hundred ten".