1040119981 has 2 divisors, whose sum is σ = 1040119982. Its totient is φ = 1040119980.

The previous prime is 1040119963. The next prime is 1040120017. The reversal of 1040119981 is 1899110401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 804006025 + 236113956 = 28355^2 + 15366^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040119981 - 2¹³ = 1040111789 is a prime.

It is a super-2 number, since 2×1040119981² = 2163699149750880722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040119901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520059990 + 520059991.

It is an arithmetic number, because the mean of its divisors is an integer number (520059991).

Almost surely, 2^1040119981 is an apocalyptic number.

It is an amenable number.

1040119981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040119981 is an equidigital number, since it uses as much as digits as its factorization.

1040119981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 34.

The square root of 1040119981 is about 32250.8911659818. The cubic root of 1040119981 is about 1013.1983638215.

The spelling of 1040119981 in words is "one billion, forty million, one hundred nineteen thousand, nine hundred eighty-one".