121113230331 has 16 divisors (see below), whose sum is σ = 163742749344. Its totient is φ = 79613558784.

The previous prime is 121113230321. The next prime is 121113230351. The reversal of 121113230331 is 133032311121.

It is a happy number.

It is not a de Polignac number, because 121113230331 - 2⁵ = 121113230299 is a prime.

It is a super-2 number, since 2×121113230331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121113230298 and 121113230307.

It is not an unprimeable number, because it can be changed into a prime (121113230321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715675 + ... + 868571.

It is an arithmetic number, because the mean of its divisors is an integer number (10233921834).

Almost surely, 2^121113230331 is an apocalyptic number.

121113230331 is a deficient number, since it is larger than the sum of its proper divisors (42629519013).

121113230331 is a wasteful number, since it uses less digits than its factorization.

121113230331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156590.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 121113230331 its reverse (133032311121), we get a palindrome (254145541452).

The spelling of 121113230331 in words is "one hundred twenty-one billion, one hundred thirteen million, two hundred thirty thousand, three hundred thirty-one".