1042351081 has 2 divisors, whose sum is σ = 1042351082. Its totient is φ = 1042351080.

The previous prime is 1042351067. The next prime is 1042351097. The reversal of 1042351081 is 1801532401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 914457600 + 127893481 = 30240^2 + 11309^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042351081 - 2⁵ = 1042351049 is a prime.

It is a super-2 number, since 2×1042351081² = 2172991552123737122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1042351181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521175540 + 521175541.

It is an arithmetic number, because the mean of its divisors is an integer number (521175541).

Almost surely, 2^1042351081 is an apocalyptic number.

It is an amenable number.

1042351081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042351081 is an equidigital number, since it uses as much as digits as its factorization.

1042351081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 1042351081 is about 32285.4623786001. The cubic root of 1042351081 is about 1013.9222971216.

Adding to 1042351081 its reverse (1801532401), we get a palindrome (2843883482).

It can be divided in two parts, 10423 and 51081, that added together give a square (61504 = 248²).

The spelling of 1042351081 in words is "one billion, forty-two million, three hundred fifty-one thousand, eighty-one".