121030313321 has 4 divisors (see below), whose sum is σ = 121174569600. Its totient is φ = 120886057044.

The previous prime is 121030313309. The next prime is 121030313347. The reversal of 121030313321 is 123313030121.

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 a cyclic number.

It is not a de Polignac number, because 121030313321 - 2²² = 121026119017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121030313293 and 121030313302.

It is not an unprimeable number, because it can be changed into a prime (121030313821) 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, 72126881 + ... + 72128558.

It is an arithmetic number, because the mean of its divisors is an integer number (30293642400).

Almost surely, 2^121030313321 is an apocalyptic number.

It is an amenable number.

121030313321 is a deficient number, since it is larger than the sum of its proper divisors (144256279).

121030313321 is an equidigital number, since it uses as much as digits as its factorization.

121030313321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144256278.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 121030313321 its reverse (123313030121), we get a palindrome (244343343442).

The spelling of 121030313321 in words is "one hundred twenty-one billion, thirty million, three hundred thirteen thousand, three hundred twenty-one".