121530001305 has 8 divisors (see below), whose sum is σ = 194448002112. Its totient is φ = 64816000688.

The previous prime is 121530001303. The next prime is 121530001309. The reversal of 121530001305 is 503100035121.

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

It is a cyclic number.

It is not a de Polignac number, because 121530001305 - 2¹ = 121530001303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121530001303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4051000029 + ... + 4051000058.

It is an arithmetic number, because the mean of its divisors is an integer number (24306000264).

Almost surely, 2^121530001305 is an apocalyptic number.

121530001305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121530001305 is a deficient number, since it is larger than the sum of its proper divisors (72918000807).

121530001305 is an equidigital number, since it uses as much as digits as its factorization.

121530001305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8102000095.

The product of its (nonzero) digits is 450, while the sum is 21.

Adding to 121530001305 its reverse (503100035121), we get a palindrome (624630036426).

The spelling of 121530001305 in words is "one hundred twenty-one billion, five hundred thirty million, one thousand, three hundred five".