1020320131 has 2 divisors, whose sum is σ = 1020320132. Its totient is φ = 1020320130.

The previous prime is 1020320117. The next prime is 1020320141. The reversal of 1020320131 is 1310230201.

1020320131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020320131 - 2²¹ = 1018222979 is a prime.

It is a super-2 number, since 2×1020320131² = 2082106339447714322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1020320101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510160065 + 510160066.

It is an arithmetic number, because the mean of its divisors is an integer number (510160066).

Almost surely, 2^1020320131 is an apocalyptic number.

1020320131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020320131 is an equidigital number, since it uses as much as digits as its factorization.

1020320131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1020320131 is about 31942.4502973707. The cubic root of 1020320131 is about 1006.7280093729.

Adding to 1020320131 its reverse (1310230201), we get a palindrome (2330550332).

The spelling of 1020320131 in words is "one billion, twenty million, three hundred twenty thousand, one hundred thirty-one".