1131521014 has 16 divisors (see below), whose sum is σ = 1890871920. Its totient is φ = 504231840.

The previous prime is 1131520997. The next prime is 1131521047. The reversal of 1131521014 is 4101251311.

It is a junction number, because it is equal to n+sod(n) for n = 1131520982 and 1131521000.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 749592 + ... + 751099.

It is an arithmetic number, because the mean of its divisors is an integer number (118179495).

Almost surely, 2^1131521014 is an apocalyptic number.

1131521014 is a deficient number, since it is larger than the sum of its proper divisors (759350906).

1131521014 is a wasteful number, since it uses less digits than its factorization.

1131521014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500735.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1131521014 is about 33638.0887388092. The cubic root of 1131521014 is about 1042.0475606513.

Adding to 1131521014 its reverse (4101251311), we get a palindrome (5232772325).

The spelling of 1131521014 in words is "one billion, one hundred thirty-one million, five hundred twenty-one thousand, fourteen".