1020031427 has 2 divisors, whose sum is σ = 1020031428. Its totient is φ = 1020031426.

The previous prime is 1020031417. The next prime is 1020031457. The reversal of 1020031427 is 7241300201.

It is a weak prime.

It is an emirp because it is prime and its reverse (7241300201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020031427 is a prime.

It is a super-2 number, since 2×1020031427² = 2080928224135312658, which contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1020031399 and 1020031408.

It is not a weakly prime, because it can be changed into another prime (1020031417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510015713 + 510015714.

It is an arithmetic number, because the mean of its divisors is an integer number (510015714).

Almost surely, 2^1020031427 is an apocalyptic number.

1020031427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020031427 is an equidigital number, since it uses as much as digits as its factorization.

1020031427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1020031427 is about 31937.9308503228. The cubic root of 1020031427 is about 1006.6330477323.

Adding to 1020031427 its reverse (7241300201), we get a palindrome (8261331628).

The spelling of 1020031427 in words is "one billion, twenty million, thirty-one thousand, four hundred twenty-seven".