121230542632 has 8 divisors (see below), whose sum is σ = 227307267450. Its totient is φ = 60615271312.

The previous prime is 121230542597. The next prime is 121230542633. The reversal of 121230542632 is 236245032121.

It can be written as a sum of positive squares in only one way, i.e., 103353248196 + 17877294436 = 321486^2 + 133706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 121230542594 and 121230542603.

It is not an unprimeable number, because it can be changed into a prime (121230542633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7576908907 + ... + 7576908922.

Almost surely, 2^121230542632 is an apocalyptic number.

It is an amenable number.

121230542632 is a deficient number, since it is larger than the sum of its proper divisors (106076724818).

121230542632 is a wasteful number, since it uses less digits than its factorization.

121230542632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15153817835 (or 15153817831 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 121230542632 its reverse (236245032121), we get a palindrome (357475574753).

The spelling of 121230542632 in words is "one hundred twenty-one billion, two hundred thirty million, five hundred forty-two thousand, six hundred thirty-two".