121012332321 has 4 divisors (see below), whose sum is σ = 161349776432. Its totient is φ = 80674888212.

The previous prime is 121012332317. The next prime is 121012332383. The reversal of 121012332321 is 123233210121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 121012332321 - 2² = 121012332317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121012332391) 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, 20168722051 + ... + 20168722056.

It is an arithmetic number, because the mean of its divisors is an integer number (40337444108).

Almost surely, 2^121012332321 is an apocalyptic number.

It is an amenable number.

121012332321 is a deficient number, since it is larger than the sum of its proper divisors (40337444111).

121012332321 is an equidigital number, since it uses as much as digits as its factorization.

121012332321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40337444110.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121012332321 its reverse (123233210121), we get a palindrome (244245542442).

The spelling of 121012332321 in words is "one hundred twenty-one billion, twelve million, three hundred thirty-two thousand, three hundred twenty-one".