1152971311 has 4 divisors (see below), whose sum is σ = 1153586800. Its totient is φ = 1152355824.

The previous prime is 1152971279. The next prime is 1152971329. The reversal of 1152971311 is 1131792511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1131792511 = 73 ⋅15504007.

It is a cyclic number.

It is not a de Polignac number, because 1152971311 - 2⁵ = 1152971279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152971111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304926 + ... + 308683.

It is an arithmetic number, because the mean of its divisors is an integer number (288396700).

Almost surely, 2^1152971311 is an apocalyptic number.

1152971311 is a deficient number, since it is larger than the sum of its proper divisors (615489).

1152971311 is an equidigital number, since it uses as much as digits as its factorization.

1152971311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615488.

The product of its digits is 1890, while the sum is 31.

The square root of 1152971311 is about 33955.4312445005. The cubic root of 1152971311 is about 1048.5910993328.

The spelling of 1152971311 in words is "one billion, one hundred fifty-two million, nine hundred seventy-one thousand, three hundred eleven".