1121630471 has 8 divisors (see below), whose sum is σ = 1278963504. Its totient is φ = 974448000.

The previous prime is 1121630423. The next prime is 1121630479. The reversal of 1121630471 is 1740361211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121630471 is a prime.

It is a super-3 number, since 3×1121630471³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121630471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121630479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2537405 + ... + 2537846.

It is an arithmetic number, because the mean of its divisors is an integer number (159870438).

Almost surely, 2^1121630471 is an apocalyptic number.

1121630471 is a deficient number, since it is larger than the sum of its proper divisors (157333033).

1121630471 is a wasteful number, since it uses less digits than its factorization.

1121630471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075281.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1121630471 is about 33490.7520220135. The cubic root of 1121630471 is about 1039.0025171597.

Adding to 1121630471 its reverse (1740361211), we get a palindrome (2861991682).

The spelling of 1121630471 in words is "one billion, one hundred twenty-one million, six hundred thirty thousand, four hundred seventy-one".