121130332231 has 4 divisors (see below), whose sum is σ = 124404125032. Its totient is φ = 117856539432.

The previous prime is 121130332181. The next prime is 121130332283. The reversal of 121130332231 is 132233031121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132233031121 = 41 ⋅3225195881.

It is a cyclic number.

It is not a de Polignac number, because 121130332231 - 2⁹ = 121130331719 is a prime.

It is a super-2 number, since 2×121130332231² (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 (121130332031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636896345 + ... + 1636896418.

It is an arithmetic number, because the mean of its divisors is an integer number (31101031258).

Almost surely, 2^121130332231 is an apocalyptic number.

121130332231 is a deficient number, since it is larger than the sum of its proper divisors (3273792801).

121130332231 is an equidigital number, since it uses as much as digits as its factorization.

121130332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273792800.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121130332231 its reverse (132233031121), we get a palindrome (253363363352).

The spelling of 121130332231 in words is "one hundred twenty-one billion, one hundred thirty million, three hundred thirty-two thousand, two hundred thirty-one".