121131311223330 has 96 divisors (see below), whose sum is σ = 318592782144000. Its totient is φ = 31928527927296.

The previous prime is 121131311223317. The next prime is 121131311223337. The reversal of 121131311223330 is 33322113131121.

121131311223330 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 313 + 1 + 12 + 2 + 3 + 330 = 666.

It is a super-2 number, since 2×121131311223330² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121131311223294 and 121131311223303.

It is not an unprimeable number, because it can be changed into a prime (121131311223337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9683410 + ... + 18331149.

It is an arithmetic number, because the mean of its divisors is an integer number (3318674814000).

Almost surely, 2^{121131311223330} is an apocalyptic number.

121131311223330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121131311223330 is an abundant number, since it is smaller than the sum of its proper divisors (197461470920670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121131311223330 is a wasteful number, since it uses less digits than its factorization.

121131311223330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28015128 (or 28015125 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 121131311223330 its reverse (33322113131121), we get a palindrome (154453424354451).

The spelling of 121131311223330 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, three hundred eleven million, two hundred twenty-three thousand, three hundred thirty".