3040120304381 has 2 divisors, whose sum is σ = 3040120304382. Its totient is φ = 3040120304380.

The previous prime is 3040120304293. The next prime is 3040120304383. The reversal of 3040120304381 is 1834030210403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1795356128281 + 1244764176100 = 1339909^2 + 1115690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3040120304381 is a prime.

It is a super-2 number, since 2×3040120304381² (a number of 26 digits) contains 22 as substring.

Together with 3040120304383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3040120304383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1520060152190 + 1520060152191.

It is an arithmetic number, because the mean of its divisors is an integer number (1520060152191).

Almost surely, 2^{3040120304381} is an apocalyptic number.

It is an amenable number.

3040120304381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3040120304381 is an equidigital number, since it uses as much as digits as its factorization.

3040120304381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 3040120304381 its reverse (1834030210403), we get a palindrome (4874150514784).

The spelling of 3040120304381 in words is "three trillion, forty billion, one hundred twenty million, three hundred four thousand, three hundred eighty-one".