121321033331 has 8 divisors (see below), whose sum is σ = 122464001520. Its totient is φ = 120178234368.

The previous prime is 121321033291. The next prime is 121321033343. The reversal of 121321033331 is 133330123121.

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-121321033331 is a prime.

It is a super-2 number, since 2×121321033331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121321033297 and 121321033306.

It is not an unprimeable number, because it can be changed into a prime (121321032331) 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, 1756115 + ... + 1823891.

It is an arithmetic number, because the mean of its divisors is an integer number (15308000190).

Almost surely, 2^121321033331 is an apocalyptic number.

121321033331 is a deficient number, since it is larger than the sum of its proper divisors (1142968189).

121321033331 is a wasteful number, since it uses less digits than its factorization.

121321033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84613.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 121321033331 its reverse (133330123121), we get a palindrome (254651156452).

The spelling of 121321033331 in words is "one hundred twenty-one billion, three hundred twenty-one million, thirty-three thousand, three hundred thirty-one".