1331012031 has 8 divisors (see below), whose sum is σ = 1774878000. Its totient is φ = 887243712.

The previous prime is 1331012029. The next prime is 1331012057. The reversal of 1331012031 is 1302101331.

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

It is not a de Polignac number, because 1331012031 - 2¹ = 1331012029 is a prime.

It is a super-2 number, since 2×1331012031² = 3543186053333489922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1331012031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331012071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17845 + ... + 54593.

It is an arithmetic number, because the mean of its divisors is an integer number (221859750).

Almost surely, 2^1331012031 is an apocalyptic number.

1331012031 is a deficient number, since it is larger than the sum of its proper divisors (443865969).

1331012031 is a wasteful number, since it uses less digits than its factorization.

1331012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48825.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1331012031 is about 36483.0375791271. The cubic root of 1331012031 is about 1100.0033143151.

Adding to 1331012031 its reverse (1302101331), we get a palindrome (2633113362).

The spelling of 1331012031 in words is "one billion, three hundred thirty-one million, twelve thousand, thirty-one".