1031401081 has 2 divisors, whose sum is σ = 1031401082. Its totient is φ = 1031401080.

The previous prime is 1031401069. The next prime is 1031401099. The reversal of 1031401081 is 1801041301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 985960000 + 45441081 = 31400^2 + 6741^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031401081 - 2¹⁹ = 1030876793 is a prime.

It is a super-2 number, since 2×1031401081² = 2127576379775937122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1031401001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515700540 + 515700541.

It is an arithmetic number, because the mean of its divisors is an integer number (515700541).

Almost surely, 2^1031401081 is an apocalyptic number.

It is an amenable number.

1031401081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031401081 is an equidigital number, since it uses as much as digits as its factorization.

1031401081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1031401081 is about 32115.4336884931. The cubic root of 1031401081 is about 1010.3593404905.

Adding to 1031401081 its reverse (1801041301), we get a palindrome (2832442382).

The spelling of 1031401081 in words is "one billion, thirty-one million, four hundred one thousand, eighty-one".