121314144321 has 6 divisors (see below), whose sum is σ = 175231541810. Its totient is φ = 80876096208.

The previous prime is 121314144317. The next prime is 121314144379. The reversal of 121314144321 is 123441413121.

It is a happy number.

121314144321 is a `hidden beast` number, since 1 + 21 + 314 + 1 + 4 + 4 + 321 = 666.

It can be written as a sum of positive squares in only one way, i.e., 121271097600 + 43046721 = 348240^2 + 6561^2 .

It is not a de Polignac number, because 121314144321 - 2² = 121314144317 is a prime.

It is a super-2 number, since 2×121314144321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121314144421) 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, 6739674676 + ... + 6739674693.

Almost surely, 2^121314144321 is an apocalyptic number.

It is an amenable number.

121314144321 is a deficient number, since it is larger than the sum of its proper divisors (53917397489).

121314144321 is a wasteful number, since it uses less digits than its factorization.

121314144321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13479349375 (or 13479349372 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 121314144321 its reverse (123441413121), we get a palindrome (244755557442).

The spelling of 121314144321 in words is "one hundred twenty-one billion, three hundred fourteen million, one hundred forty-four thousand, three hundred twenty-one".