2011402204381 has 2 divisors, whose sum is σ = 2011402204382. Its totient is φ = 2011402204380.

The previous prime is 2011402204373. The next prime is 2011402204429. The reversal of 2011402204381 is 1834022041102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1524150739225 + 487251465156 = 1234565^2 + 698034^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011402204381 - 2³ = 2011402204373 is a prime.

It is a super-2 number, since 2×2011402204381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011402204481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005701102190 + 1005701102191.

It is an arithmetic number, because the mean of its divisors is an integer number (1005701102191).

Almost surely, 2^{2011402204381} is an apocalyptic number.

It is an amenable number.

2011402204381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011402204381 is an equidigital number, since it uses as much as digits as its factorization.

2011402204381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 2011402204381 its reverse (1834022041102), we get a palindrome (3845424245483).

The spelling of 2011402204381 in words is "two trillion, eleven billion, four hundred two million, two hundred four thousand, three hundred eighty-one".