1331213430 has 32 divisors (see below), whose sum is σ = 3262892544. Its totient is φ = 347436896.

The previous prime is 1331213423. The next prime is 1331213453. The reversal of 1331213430 is 343121331.

It is a junction number, because it is equal to n+sod(n) for n = 1331213397 and 1331213406.

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 15 ways as a sum of consecutive naturals, for example, 470652 + ... + 473471.

It is an arithmetic number, because the mean of its divisors is an integer number (101965392).

Almost surely, 2^1331213430 is an apocalyptic number.

1331213430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331213430 is an abundant number, since it is smaller than the sum of its proper divisors (1931679114).

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

1331213430 is a wasteful number, since it uses less digits than its factorization.

1331213430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944180.

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

The square root of 1331213430 is about 36485.7976478520. The cubic root of 1331213430 is about 1100.0587930008.

Adding to 1331213430 its reverse (343121331), we get a palindrome (1674334761).

The spelling of 1331213430 in words is "one billion, three hundred thirty-one million, two hundred thirteen thousand, four hundred thirty".