3420518831 has 2 divisors, whose sum is σ = 3420518832. Its totient is φ = 3420518830.

The previous prime is 3420518821. The next prime is 3420518851. The reversal of 3420518831 is 1388150243.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3420518831 - 2¹⁴ = 3420502447 is a prime.

It is a super-2 number, since 2×3420518831² = 23399898146451213122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3420518791 and 3420518800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3420518821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710259415 + 1710259416.

It is an arithmetic number, because the mean of its divisors is an integer number (1710259416).

Almost surely, 2^3420518831 is an apocalyptic number.

3420518831 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420518831 is an equidigital number, since it uses as much as digits as its factorization.

3420518831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 3420518831 is about 58485.2018120823. The cubic root of 3420518831 is about 1506.7134388516.

The spelling of 3420518831 in words is "three billion, four hundred twenty million, five hundred eighteen thousand, eight hundred thirty-one".