121032321331 has 4 divisors (see below), whose sum is σ = 123607477152. Its totient is φ = 118457165512.

The previous prime is 121032321329. The next prime is 121032321353. The reversal of 121032321331 is 133123230121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121032321331 - 2¹ = 121032321329 is a prime.

It is a super-2 number, since 2×121032321331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121032321131) 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, 1287577840 + ... + 1287577933.

It is an arithmetic number, because the mean of its divisors is an integer number (30901869288).

Almost surely, 2^121032321331 is an apocalyptic number.

121032321331 is a deficient number, since it is larger than the sum of its proper divisors (2575155821).

121032321331 is an equidigital number, since it uses as much as digits as its factorization.

121032321331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575155820.

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

Adding to 121032321331 its reverse (133123230121), we get a palindrome (254155551452).

The spelling of 121032321331 in words is "one hundred twenty-one billion, thirty-two million, three hundred twenty-one thousand, three hundred thirty-one".