121320424330 has 64 divisors (see below), whose sum is σ = 254949285888. Its totient is φ = 40703719680.

The previous prime is 121320424321. The next prime is 121320424349. The reversal of 121320424330 is 33424023121.

It is a super-2 number, since 2×121320424330² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121320424295 and 121320424304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1378240 + ... + 1463620.

It is an arithmetic number, because the mean of its divisors is an integer number (3983582592).

Almost surely, 2^121320424330 is an apocalyptic number.

121320424330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121320424330 is an abundant number, since it is smaller than the sum of its proper divisors (133628861558).

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

121320424330 is a wasteful number, since it uses less digits than its factorization.

121320424330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85831.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 121320424330 its reverse (33424023121), we get a palindrome (154744447451).

The spelling of 121320424330 in words is "one hundred twenty-one billion, three hundred twenty million, four hundred twenty-four thousand, three hundred thirty".