1223301242131 has 2 divisors, whose sum is σ = 1223301242132. Its totient is φ = 1223301242130.

The previous prime is 1223301242113. The next prime is 1223301242147. The reversal of 1223301242131 is 1312421033221.

Together with previous prime (1223301242113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (1312421033221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223301242131 - 2¹⁹ = 1223300717843 is a prime.

It is a super-2 number, since 2×1223301242131² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223301242096 and 1223301242105.

It is not a weakly prime, because it can be changed into another prime (1223301242161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611650621065 + 611650621066.

It is an arithmetic number, because the mean of its divisors is an integer number (611650621066).

Almost surely, 2^{1223301242131} is an apocalyptic number.

1223301242131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223301242131 is an equidigital number, since it uses as much as digits as its factorization.

1223301242131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1223301242131 its reverse (1312421033221), we get a palindrome (2535722275352).

The spelling of 1223301242131 in words is "one trillion, two hundred twenty-three billion, three hundred one million, two hundred forty-two thousand, one hundred thirty-one".