1120709531 has 2 divisors, whose sum is σ = 1120709532. Its totient is φ = 1120709530.

The previous prime is 1120709519. The next prime is 1120709533. The reversal of 1120709531 is 1359070211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1120709531 - 2¹⁸ = 1120447387 is a prime.

It is a super-2 number, since 2×1120709531² = 2511979705748479922, which contains 22 as substring.

Together with 1120709533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120709494 and 1120709503.

It is not a weakly prime, because it can be changed into another prime (1120709533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560354765 + 560354766.

It is an arithmetic number, because the mean of its divisors is an integer number (560354766).

Almost surely, 2^1120709531 is an apocalyptic number.

1120709531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120709531 is an equidigital number, since it uses as much as digits as its factorization.

1120709531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 1120709531 is about 33477.0000298713. Note that the first 4 decimals coincide. The cubic root of 1120709531 is about 1038.7180738111.

Adding to 1120709531 its reverse (1359070211), we get a palindrome (2479779742).

The spelling of 1120709531 in words is "one billion, one hundred twenty million, seven hundred nine thousand, five hundred thirty-one".