120102100001 has 8 divisors (see below), whose sum is σ = 129348285864. Its totient is φ = 110856994560.

The previous prime is 120102099979. The next prime is 120102100049. The reversal of 120102100001 is 100001201021.

It can be written as a sum of positive squares in 4 ways, for example, as 635090401 + 119467009600 = 25201^2 + 345640^2 .

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

It is not a de Polignac number, because 120102100001 - 2¹⁸ = 120101837857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120102103001) 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 7 ways as a sum of consecutive naturals, for example, 31406 + ... + 491111.

It is an arithmetic number, because the mean of its divisors is an integer number (16168535733).

Almost surely, 2^120102100001 is an apocalyptic number.

It is an amenable number.

120102100001 is a deficient number, since it is larger than the sum of its proper divisors (9246185863).

120102100001 is a wasteful number, since it uses less digits than its factorization.

120102100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540211.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 120102100001 its reverse (100001201021), we get a palindrome (220103301022).

The spelling of 120102100001 in words is "one hundred twenty billion, one hundred two million, one hundred thousand, one".