121402655302 has 32 divisors (see below), whose sum is σ = 191231302752. Its totient is φ = 57747354624.

The previous prime is 121402655299. The next prime is 121402655327. The reversal of 121402655302 is 203556204121.

It is a super-2 number, since 2×121402655302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493888 + ... + 697660.

It is an arithmetic number, because the mean of its divisors is an integer number (5975978211).

Almost surely, 2^121402655302 is an apocalyptic number.

121402655302 is a deficient number, since it is larger than the sum of its proper divisors (69828647450).

121402655302 is a wasteful number, since it uses less digits than its factorization.

121402655302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203992.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 121402655302 its reverse (203556204121), we get a palindrome (324958859423).

The spelling of 121402655302 in words is "one hundred twenty-one billion, four hundred two million, six hundred fifty-five thousand, three hundred two".