121699061530 has 8 divisors (see below), whose sum is σ = 219058310772. Its totient is φ = 48679624608.

The previous prime is 121699061507. The next prime is 121699061531. The reversal of 121699061530 is 35160996121.

It can be written as a sum of positive squares in 2 ways, for example, as 118836704529 + 2862357001 = 344727^2 + 53501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121699061531) 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 in 3 ways as a sum of consecutive naturals, for example, 6084953067 + ... + 6084953086.

Almost surely, 2^121699061530 is an apocalyptic number.

121699061530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121699061530 is a deficient number, since it is larger than the sum of its proper divisors (97359249242).

121699061530 is a wasteful number, since it uses less digits than its factorization.

121699061530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12169906160.

The product of its (nonzero) digits is 87480, while the sum is 43.

The spelling of 121699061530 in words is "one hundred twenty-one billion, six hundred ninety-nine million, sixty-one thousand, five hundred thirty".