1115355331 has 2 divisors, whose sum is σ = 1115355332. Its totient is φ = 1115355330.

The previous prime is 1115355301. The next prime is 1115355337. The reversal of 1115355331 is 1335535111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1115355331 - 2¹⁵ = 1115322563 is a prime.

It is a super-2 number, since 2×1115355331² = 2488035028780239122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1115355331.

It is not a weakly prime, because it can be changed into another prime (1115355337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557677665 + 557677666.

It is an arithmetic number, because the mean of its divisors is an integer number (557677666).

Almost surely, 2^1115355331 is an apocalyptic number.

1115355331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115355331 is an equidigital number, since it uses as much as digits as its factorization.

1115355331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3375, while the sum is 28.

The square root of 1115355331 is about 33396.9359522696. The cubic root of 1115355331 is about 1037.0612708508.

The spelling of 1115355331 in words is "one billion, one hundred fifteen million, three hundred fifty-five thousand, three hundred thirty-one".