2231404043389 has 2 divisors, whose sum is σ = 2231404043390. Its totient is φ = 2231404043388.

The previous prime is 2231404043233. The next prime is 2231404043431. The reversal of 2231404043389 is 9833404041322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1934741902500 + 296662140889 = 1390950^2 + 544667^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231404043389 - 2¹¹ = 2231404041341 is a prime.

It is a super-3 number, since 3×2231404043389³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231474043389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115702021694 + 1115702021695.

It is an arithmetic number, because the mean of its divisors is an integer number (1115702021695).

Almost surely, 2^{2231404043389} is an apocalyptic number.

It is an amenable number.

2231404043389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231404043389 is an equidigital number, since it uses as much as digits as its factorization.

2231404043389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 2231404043389 in words is "two trillion, two hundred thirty-one billion, four hundred four million, forty-three thousand, three hundred eighty-nine".