121100201231 has 8 divisors (see below), whose sum is σ = 121731833664. Its totient is φ = 120470054560.

The previous prime is 121100201149. The next prime is 121100201309. The reversal of 121100201231 is 132102001121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121100201231 is a prime.

It is a super-2 number, since 2×121100201231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100201531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207815 + ... + 534216.

It is an arithmetic number, because the mean of its divisors is an integer number (15216479208).

Almost surely, 2^121100201231 is an apocalyptic number.

121100201231 is a deficient number, since it is larger than the sum of its proper divisors (631632433).

121100201231 is an equidigital number, since it uses as much as digits as its factorization.

121100201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742881.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121100201231 its reverse (132102001121), we get a palindrome (253202202352).

The spelling of 121100201231 in words is "one hundred twenty-one billion, one hundred million, two hundred one thousand, two hundred thirty-one".