121620006303356 has 36 divisors (see below), whose sum is σ = 240265388856024. Its totient is φ = 53787717767520.

The previous prime is 121620006303343. The next prime is 121620006303361. The reversal of 121620006303356 is 653303600026121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3395671346 + ... + 3395707161.

It is an arithmetic number, because the mean of its divisors is an integer number (6674038579334).

Almost surely, 2^{121620006303356} is an apocalyptic number.

It is an amenable number.

121620006303356 is a deficient number, since it is larger than the sum of its proper divisors (118645382552668).

121620006303356 is a wasteful number, since it uses less digits than its factorization.

121620006303356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791378570 (or 6791378557 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 38.

Adding to 121620006303356 its reverse (653303600026121), we get a palindrome (774923606329477).

The spelling of 121620006303356 in words is "one hundred twenty-one trillion, six hundred twenty billion, six million, three hundred three thousand, three hundred fifty-six".