1220313024531 has 12 divisors (see below), whose sum is σ = 1763086938808. Its totient is φ = 813351599424.

The previous prime is 1220313024517. The next prime is 1220313024583. The reversal of 1220313024531 is 1354203130221.

1220313024531 is a `hidden beast` number, since 1 + 2 + 203 + 1 + 3 + 0 + 2 + 453 + 1 = 666.

It is not a de Polignac number, because 1220313024531 - 2⁶ = 1220313024467 is a prime.

It is a super-2 number, since 2×1220313024531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220313024495 and 1220313024504.

It is not an unprimeable number, because it can be changed into a prime (1220313024631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15827485 + ... + 15904398.

Almost surely, 2^{1220313024531} is an apocalyptic number.

1220313024531 is a deficient number, since it is larger than the sum of its proper divisors (542773914277).

1220313024531 is a wasteful number, since it uses less digits than its factorization.

1220313024531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31736162 (or 31736159 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 1220313024531 its reverse (1354203130221), we get a palindrome (2574516154752).

The spelling of 1220313024531 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, twenty-four thousand, five hundred thirty-one".