2201431381 has 2 divisors, whose sum is σ = 2201431382. Its totient is φ = 2201431380.

The previous prime is 2201431369. The next prime is 2201431403. The reversal of 2201431381 is 1831341022.

It is a happy number.

2201431381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2010715281 + 190716100 = 44841^2 + 13810^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201431381 - 2²³ = 2193042773 is a prime.

It is a super-2 number, since 2×2201431381² = 9692600250503134322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201438381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100715690 + 1100715691.

It is an arithmetic number, because the mean of its divisors is an integer number (1100715691).

Almost surely, 2^2201431381 is an apocalyptic number.

It is an amenable number.

2201431381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201431381 is an equidigital number, since it uses as much as digits as its factorization.

2201431381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2201431381 is about 46919.4136898576. The cubic root of 2201431381 is about 1300.8734526524.

The spelling of 2201431381 in words is "two billion, two hundred one million, four hundred thirty-one thousand, three hundred eighty-one".