121342522432 has 28 divisors (see below), whose sum is σ = 241008705180. Its totient is φ = 60615919616.

The previous prime is 121342522409. The next prime is 121342522451. The reversal of 121342522432 is 234225243121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42888753216 + 78453769216 = 207096^2 + 280096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121342522394 and 121342522403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793957 + ... + 934372.

Almost surely, 2^121342522432 is an apocalyptic number.

It is an amenable number.

121342522432 is a deficient number, since it is larger than the sum of its proper divisors (119666182748).

121342522432 is a wasteful number, since it uses less digits than its factorization.

121342522432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729438 (or 1729428 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

Adding to 121342522432 its reverse (234225243121), we get a palindrome (355567765553).

The spelling of 121342522432 in words is "one hundred twenty-one billion, three hundred forty-two million, five hundred twenty-two thousand, four hundred thirty-two".