1220312300131 has 6 divisors (see below), whose sum is σ = 1249351642860. Its totient is φ = 1191932942508.

The previous prime is 1220312300107. The next prime is 1220312300147. The reversal of 1220312300131 is 1310032130221.

It is not a de Polignac number, because 1220312300131 - 2⁵ = 1220312300099 is a prime.

It is a super-2 number, since 2×1220312300131² (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 = 1220312300099 and 1220312300108.

It is not an unprimeable number, because it can be changed into a prime (1220312300231) 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 5 ways as a sum of consecutive naturals, for example, 329990661 + ... + 329994358.

It is an arithmetic number, because the mean of its divisors is an integer number (208225273810).

Almost surely, 2^{1220312300131} is an apocalyptic number.

1220312300131 is a deficient number, since it is larger than the sum of its proper divisors (29039342729).

1220312300131 is an frugal number, since it uses more digits than its factorization.

1220312300131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659985105 (or 659985062 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1220312300131 its reverse (1310032130221), we get a palindrome (2530344430352).

The spelling of 1220312300131 in words is "one trillion, two hundred twenty billion, three hundred twelve million, three hundred thousand, one hundred thirty-one".