2120030001 has 6 divisors (see below), whose sum is σ = 3062265570. Its totient is φ = 1413353328.

The previous prime is 2120029981. The next prime is 2120030023. The reversal of 2120030001 is 1000300212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1167998976 + 952031025 = 34176^2 + 30855^2 .

It is not a de Polignac number, because 2120030001 - 2⁵ = 2120029969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 235558889 = 2120030001 / (2 + 1 + 2 + 0 + 0 + 3 + 0 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (2120030041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117779436 + ... + 117779453.

It is an arithmetic number, because the mean of its divisors is an integer number (510377595).

Almost surely, 2^2120030001 is an apocalyptic number.

It is an amenable number.

2120030001 is a deficient number, since it is larger than the sum of its proper divisors (942235569).

2120030001 is a wasteful number, since it uses less digits than its factorization.

2120030001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235558895 (or 235558892 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2120030001 is about 46043.7835217741. The cubic root of 2120030001 is about 1284.6377174692.

Adding to 2120030001 its reverse (1000300212), we get a palindrome (3120330213).

The spelling of 2120030001 in words is "two billion, one hundred twenty million, thirty thousand, one".