1113345971 has 2 divisors, whose sum is σ = 1113345972. Its totient is φ = 1113345970.

The previous prime is 1113345967. The next prime is 1113345979. The reversal of 1113345971 is 1795433111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113345971 - 2² = 1113345967 is a prime.

It is a super-2 number, since 2×1113345971² = 2479078502283865682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1113345979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556672985 + 556672986.

It is an arithmetic number, because the mean of its divisors is an integer number (556672986).

Almost surely, 2^1113345971 is an apocalyptic number.

1113345971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113345971 is an equidigital number, since it uses as much as digits as its factorization.

1113345971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 35.

The square root of 1113345971 is about 33366.8393918273. The cubic root of 1113345971 is about 1036.4381265188.

The spelling of 1113345971 in words is "one billion, one hundred thirteen million, three hundred forty-five thousand, nine hundred seventy-one".