1121538470 has 64 divisors (see below), whose sum is σ = 2235207744. Its totient is φ = 402554880.

The previous prime is 1121538437. The next prime is 1121538521. The reversal of 1121538470 is 748351211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1749350 + ... + 1749990.

It is an arithmetic number, because the mean of its divisors is an integer number (34925121).

Almost surely, 2^1121538470 is an apocalyptic number.

1121538470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121538470 is a deficient number, since it is larger than the sum of its proper divisors (1113669274).

1121538470 is a wasteful number, since it uses less digits than its factorization.

1121538470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1121538470 is about 33489.3784654180. The cubic root of 1121538470 is about 1038.9741085508.

Adding to 1121538470 its reverse (748351211), we get a palindrome (1869889681).

The spelling of 1121538470 in words is "one billion, one hundred twenty-one million, five hundred thirty-eight thousand, four hundred seventy".