121030010001 has 64 divisors (see below), whose sum is σ = 196974581760. Its totient is φ = 73115965440.

The previous prime is 121030009979. The next prime is 121030010047. The reversal of 121030010001 is 100010030121.

It is not a de Polignac number, because 121030010001 - 2⁹ = 121030009489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121030010081) 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 63 ways as a sum of consecutive naturals, for example, 2781525 + ... + 2824701.

It is an arithmetic number, because the mean of its divisors is an integer number (3077727840).

Almost surely, 2^121030010001 is an apocalyptic number.

It is an amenable number.

121030010001 is a deficient number, since it is larger than the sum of its proper divisors (75944571759).

121030010001 is a wasteful number, since it uses less digits than its factorization.

121030010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43431 (or 43425 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 121030010001 its reverse (100010030121), we get a palindrome (221040040122).

The spelling of 121030010001 in words is "one hundred twenty-one billion, thirty million, ten thousand, one".