1121479631 has 2 divisors, whose sum is σ = 1121479632. Its totient is φ = 1121479630.

The previous prime is 1121479621. The next prime is 1121479633. The reversal of 1121479631 is 1369741211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121479631 - 2²⁶ = 1054370767 is a prime.

It is a super-2 number, since 2×1121479631² = 2515433125495792322, which contains 22 as substring.

Together with 1121479633, 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 = 1121479591 and 1121479600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121479633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560739815 + 560739816.

It is an arithmetic number, because the mean of its divisors is an integer number (560739816).

Almost surely, 2^1121479631 is an apocalyptic number.

1121479631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121479631 is an equidigital number, since it uses as much as digits as its factorization.

1121479631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 35.

The square root of 1121479631 is about 33488.4999813369. The cubic root of 1121479631 is about 1038.9559390844.

The spelling of 1121479631 in words is "one billion, one hundred twenty-one million, four hundred seventy-nine thousand, six hundred thirty-one".