1115117371 has 2 divisors, whose sum is σ = 1115117372. Its totient is φ = 1115117370.

The previous prime is 1115117351. The next prime is 1115117383. The reversal of 1115117371 is 1737115111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1115117371 - 2²¹ = 1113020219 is a prime.

It is a super-2 number, since 2×1115117371² = 2486973502211903282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1115117351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557558685 + 557558686.

It is an arithmetic number, because the mean of its divisors is an integer number (557558686).

Almost surely, 2^1115117371 is an apocalyptic number.

1115117371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115117371 is an equidigital number, since it uses as much as digits as its factorization.

1115117371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 735, while the sum is 28.

The square root of 1115117371 is about 33393.3731599550. The cubic root of 1115117371 is about 1036.9875135930.

The spelling of 1115117371 in words is "one billion, one hundred fifteen million, one hundred seventeen thousand, three hundred seventy-one".