133121211031100 has 36 divisors (see below), whose sum is σ = 289525111618344. Its totient is φ = 53128284655680.

The previous prime is 133121211031057. The next prime is 133121211031141. The reversal of 133121211031100 is 1130112121331.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1502452439 + ... + 1502541038.

Almost surely, 2^{133121211031100} is an apocalyptic number.

133121211031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133121211031100 is an abundant number, since it is smaller than the sum of its proper divisors (156403900587244).

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

133121211031100 is a wasteful number, since it uses less digits than its factorization.

133121211031100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004993934 (or 3004993927 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 133121211031100 its reverse (1130112121331), we get a palindrome (134251323152431).

The spelling of 133121211031100 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, two hundred eleven million, thirty-one thousand, one hundred".