121100200331 has 4 divisors (see below), whose sum is σ = 132109309464. Its totient is φ = 110091091200.

The previous prime is 121100200301. The next prime is 121100200477. The reversal of 121100200331 is 133002001121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133002001121 = 11 ⋅12091091011.

It is a cyclic number.

It is not a de Polignac number, because 121100200331 - 2¹⁰ = 121100199307 is a prime.

It is a super-2 number, since 2×121100200331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121100200301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5504554550 + ... + 5504554571.

It is an arithmetic number, because the mean of its divisors is an integer number (33027327366).

Almost surely, 2^121100200331 is an apocalyptic number.

121100200331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121100200331 is a deficient number, since it is larger than the sum of its proper divisors (11009109133).

121100200331 is a wasteful number, since it uses less digits than its factorization.

121100200331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009109132.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 121100200331 its reverse (133002001121), we get a palindrome (254102201452).

The spelling of 121100200331 in words is "one hundred twenty-one billion, one hundred million, two hundred thousand, three hundred thirty-one".