121012230321 has 6 divisors (see below), whose sum is σ = 174795443810. Its totient is φ = 80674820208.

The previous prime is 121012230301. The next prime is 121012230331. The reversal of 121012230321 is 123032210121.

121012230321 is a `hidden beast` number, since 12 + 101 + 2 + 230 + 321 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65006641296 + 56005589025 = 254964^2 + 236655^2 .

It is not a de Polignac number, because 121012230321 - 2¹⁴ = 121012213937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121012230294 and 121012230303.

It is not an unprimeable number, because it can be changed into a prime (121012230301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6722901676 + ... + 6722901693.

Almost surely, 2^121012230321 is an apocalyptic number.

It is an amenable number.

121012230321 is a deficient number, since it is larger than the sum of its proper divisors (53783213489).

121012230321 is a wasteful number, since it uses less digits than its factorization.

121012230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13445803375 (or 13445803372 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121012230321 its reverse (123032210121), we get a palindrome (244044440442).

It can be divided in two parts, 12101 and 2230321, that added together give a palindrome (2242422).

The spelling of 121012230321 in words is "one hundred twenty-one billion, twelve million, two hundred thirty thousand, three hundred twenty-one".