100121133553 has 8 divisors (see below), whose sum is σ = 114516663872. Its totient is φ = 85748731056.

The previous prime is 100121133551. The next prime is 100121133613. The reversal of 100121133553 is 355331121001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100121133553 - 2¹ = 100121133551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121133551) 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, 5772675 + ... + 5789992.

It is an arithmetic number, because the mean of its divisors is an integer number (14314582984).

Almost surely, 2^100121133553 is an apocalyptic number.

It is an amenable number.

100121133553 is a deficient number, since it is larger than the sum of its proper divisors (14395530319).

100121133553 is a wasteful number, since it uses less digits than its factorization.

100121133553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11563911.

The product of its (nonzero) digits is 1350, while the sum is 25.

Adding to 100121133553 its reverse (355331121001), we get a palindrome (455452254554).

The spelling of 100121133553 in words is "one hundred billion, one hundred twenty-one million, one hundred thirty-three thousand, five hundred fifty-three".