121202312331 has 8 divisors (see below), whose sum is σ = 161702415424. Its totient is φ = 80751875400.

The previous prime is 121202312323. The next prime is 121202312351. The reversal of 121202312331 is 133213202121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121202312331 - 2³ = 121202312323 is a prime.

It is a super-3 number, since 3×121202312331³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121202312298 and 121202312307.

It is not an unprimeable number, because it can be changed into a prime (121202312351) 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, 12410845 + ... + 12420606.

It is an arithmetic number, because the mean of its divisors is an integer number (20212801928).

Almost surely, 2^121202312331 is an apocalyptic number.

121202312331 is a deficient number, since it is larger than the sum of its proper divisors (40500103093).

121202312331 is a wasteful number, since it uses less digits than its factorization.

121202312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24833081.

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

Adding to 121202312331 its reverse (133213202121), we get a palindrome (254415514452).

The spelling of 121202312331 in words is "one hundred twenty-one billion, two hundred two million, three hundred twelve thousand, three hundred thirty-one".