2131223301 has 24 divisors (see below), whose sum is σ = 3129692384. Its totient is φ = 1397230560.

The previous prime is 2131223291. The next prime is 2131223317. The reversal of 2131223301 is 1033221312.

2131223301 is a `hidden beast` number, since 21 + 312 + 2 + 330 + 1 = 666.

It is not a de Polignac number, because 2131223301 - 2²² = 2127028997 is a prime.

It is a super-2 number, since 2×2131223301² = 9084225517450673202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131223201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 395910 + ... + 401256.

Almost surely, 2^2131223301 is an apocalyptic number.

It is an amenable number.

2131223301 is a deficient number, since it is larger than the sum of its proper divisors (998469083).

2131223301 is a wasteful number, since it uses less digits than its factorization.

2131223301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081 (or 6078 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2131223301 is about 46165.1741142606. The cubic root of 2131223301 is about 1286.8946199236.

Adding to 2131223301 its reverse (1033221312), we get a palindrome (3164444613).

The spelling of 2131223301 in words is "two billion, one hundred thirty-one million, two hundred twenty-three thousand, three hundred one".