1026420331 has 2 divisors, whose sum is σ = 1026420332. Its totient is φ = 1026420330.

The previous prime is 1026420319. The next prime is 1026420371. The reversal of 1026420331 is 1330246201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1026420331 - 2¹⁷ = 1026289259 is a prime.

It is a super-2 number, since 2×1026420331² = 2107077391780299122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1026420371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513210165 + 513210166.

It is an arithmetic number, because the mean of its divisors is an integer number (513210166).

Almost surely, 2^1026420331 is an apocalyptic number.

1026420331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026420331 is an equidigital number, since it uses as much as digits as its factorization.

1026420331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1026420331 is about 32037.7953517404. The cubic root of 1026420331 is about 1008.7303364208.

Adding to 1026420331 its reverse (1330246201), we get a palindrome (2356666532).

The spelling of 1026420331 in words is "one billion, twenty-six million, four hundred twenty thousand, three hundred thirty-one".