121230313331 has 4 divisors (see below), whose sum is σ = 121294492200. Its totient is φ = 121166134464.

The previous prime is 121230313327. The next prime is 121230313349. The reversal of 121230313331 is 133313032121.

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 121230313331 - 2² = 121230313327 is a prime.

It is a super-2 number, since 2×121230313331² (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 = 121230313297 and 121230313306.

It is not an unprimeable number, because it can be changed into a prime (121230313361) 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, 32086601 + ... + 32090378.

It is an arithmetic number, because the mean of its divisors is an integer number (30323623050).

Almost surely, 2^121230313331 is an apocalyptic number.

121230313331 is a deficient number, since it is larger than the sum of its proper divisors (64178869).

121230313331 is an equidigital number, since it uses as much as digits as its factorization.

121230313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64178868.

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

Adding to 121230313331 its reverse (133313032121), we get a palindrome (254543345452).

The spelling of 121230313331 in words is "one hundred twenty-one billion, two hundred thirty million, three hundred thirteen thousand, three hundred thirty-one".