1331230026 has 16 divisors (see below), whose sum is σ = 3042811584. Its totient is φ = 380351424.

The previous prime is 1331230013. The next prime is 1331230031. The reversal of 1331230026 is 6200321331.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1331229984 and 1331230011.

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, 15847935 + ... + 15848018.

It is an arithmetic number, because the mean of its divisors is an integer number (190175724).

Almost surely, 2^1331230026 is an apocalyptic number.

1331230026 is an abundant number, since it is smaller than the sum of its proper divisors (1711581558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331230026 is a wasteful number, since it uses less digits than its factorization.

1331230026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31695965.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1331230026 is about 36486.0250781035. The cubic root of 1331230026 is about 1100.0633643940.

Adding to 1331230026 its reverse (6200321331), we get a palindrome (7531551357).

The spelling of 1331230026 in words is "one billion, three hundred thirty-one million, two hundred thirty thousand, twenty-six".