1320214531 has 16 divisors (see below), whose sum is σ = 1383609600. Its totient is φ = 1258096000.

The previous prime is 1320214529. The next prime is 1320214547. The reversal of 1320214531 is 1354120231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1320214531 - 2¹ = 1320214529 is a prime.

It is a super-2 number, since 2×1320214531² = 3485932815727099922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320214561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1402521 + ... + 1403461.

It is an arithmetic number, because the mean of its divisors is an integer number (86475600).

Almost surely, 2^1320214531 is an apocalyptic number.

1320214531 is a deficient number, since it is larger than the sum of its proper divisors (63395069).

1320214531 is a wasteful number, since it uses less digits than its factorization.

1320214531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1320214531 is about 36334.7565149403. The cubic root of 1320214531 is about 1097.0207345923.

Adding to 1320214531 its reverse (1354120231), we get a palindrome (2674334762).

The spelling of 1320214531 in words is "one billion, three hundred twenty million, two hundred fourteen thousand, five hundred thirty-one".