1331085052 has 24 divisors (see below), whose sum is σ = 2674909440. Its totient is φ = 573194160.

The previous prime is 1331085011. The next prime is 1331085059. The reversal of 1331085052 is 2505801331.

It is a self number, because there is not a number n which added to its sum of digits gives 1331085052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331085059) 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, 795268 + ... + 796939.

It is an arithmetic number, because the mean of its divisors is an integer number (111454560).

Almost surely, 2^1331085052 is an apocalyptic number.

It is an amenable number.

1331085052 is an abundant number, since it is smaller than the sum of its proper divisors (1343824388).

1331085052 is a wasteful number, since it uses less digits than its factorization.

1331085052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592241 (or 1592239 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1331085052 is about 36484.0383181467. The cubic root of 1331085052 is about 1100.0234298040.

Adding to 1331085052 its reverse (2505801331), we get a palindrome (3836886383).

The spelling of 1331085052 in words is "one billion, three hundred thirty-one million, eighty-five thousand, fifty-two".