121320231033 has 16 divisors (see below), whose sum is σ = 163927653120. Its totient is φ = 79797978624.

The previous prime is 121320231013. The next prime is 121320231083. The reversal of 121320231033 is 330132023121.

It is not a de Polignac number, because 121320231033 - 2⁸ = 121320230777 is a prime.

It is a super-3 number, since 3×121320231033³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121320231013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138985 + ... + 511817.

It is an arithmetic number, because the mean of its divisors is an integer number (10245478320).

Almost surely, 2^121320231033 is an apocalyptic number.

It is an amenable number.

121320231033 is a deficient number, since it is larger than the sum of its proper divisors (42607422087).

121320231033 is a wasteful number, since it uses less digits than its factorization.

121320231033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374288.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 121320231033 its reverse (330132023121), we get a palindrome (451452254154).

The spelling of 121320231033 in words is "one hundred twenty-one billion, three hundred twenty million, two hundred thirty-one thousand, thirty-three".