2120001231 has 8 divisors (see below), whose sum is σ = 2828694400. Its totient is φ = 1412321112.

The previous prime is 2120001229. The next prime is 2120001263. The reversal of 2120001231 is 1321000212.

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

It is not a de Polignac number, because 2120001231 - 2¹ = 2120001229 is a prime.

It is a super-2 number, since 2×2120001231² = 8988810438883030722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120001281) 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, 248365 + ... + 256758.

It is an arithmetic number, because the mean of its divisors is an integer number (353586800).

Almost surely, 2^2120001231 is an apocalyptic number.

2120001231 is a deficient number, since it is larger than the sum of its proper divisors (708693169).

2120001231 is a wasteful number, since it uses less digits than its factorization.

2120001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506525.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2120001231 is about 46043.4711006892. The cubic root of 2120001231 is about 1284.6319063573.

Adding to 2120001231 its reverse (1321000212), we get a palindrome (3441001443).

The spelling of 2120001231 in words is "two billion, one hundred twenty million, one thousand, two hundred thirty-one".