3402120331 has 2 divisors, whose sum is σ = 3402120332. Its totient is φ = 3402120330.

The previous prime is 3402120329. The next prime is 3402120343. The reversal of 3402120331 is 1330212043.

It is a weak prime.

It is an emirp because it is prime and its reverse (1330212043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3402120331 - 2¹ = 3402120329 is a prime.

It is a super-2 number, since 2×3402120331² = 23148845493207099122, which contains 22 as substring.

Together with 3402120329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3402120299 and 3402120308.

It is not a weakly prime, because it can be changed into another prime (3402120301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1701060165 + 1701060166.

It is an arithmetic number, because the mean of its divisors is an integer number (1701060166).

Almost surely, 2^3402120331 is an apocalyptic number.

3402120331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3402120331 is an equidigital number, since it uses as much as digits as its factorization.

3402120331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3402120331 is about 58327.6978030164. The cubic root of 3402120331 is about 1504.0071126481.

Adding to 3402120331 its reverse (1330212043), we get a palindrome (4732332374).

The spelling of 3402120331 in words is "three billion, four hundred two million, one hundred twenty thousand, three hundred thirty-one".