121315564362 has 32 divisors (see below), whose sum is σ = 251167587840. Its totient is φ = 39023170560.

The previous prime is 121315564327. The next prime is 121315564379. The reversal of 121315564362 is 263465513121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121315564362.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858187 + ... + 989502.

It is an arithmetic number, because the mean of its divisors is an integer number (7848987120).

Almost surely, 2^121315564362 is an apocalyptic number.

121315564362 is an abundant number, since it is smaller than the sum of its proper divisors (129852023478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121315564362 is a wasteful number, since it uses less digits than its factorization.

121315564362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848078.

The product of its digits is 129600, while the sum is 39.

The spelling of 121315564362 in words is "one hundred twenty-one billion, three hundred fifteen million, five hundred sixty-four thousand, three hundred sixty-two".