1321203130229 has 2 divisors, whose sum is σ = 1321203130230. Its totient is φ = 1321203130228.

The previous prime is 1321203130201. The next prime is 1321203130237. The reversal of 1321203130229 is 9220313021231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 988622547025 + 332580583204 = 994295^2 + 576698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321203130229 - 2⁸ = 1321203129973 is a prime.

It is a super-2 number, since 2×1321203130229² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321203130259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660601565114 + 660601565115.

It is an arithmetic number, because the mean of its divisors is an integer number (660601565115).

Almost surely, 2^{1321203130229} is an apocalyptic number.

It is an amenable number.

1321203130229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321203130229 is an equidigital number, since it uses as much as digits as its factorization.

1321203130229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 1321203130229 in words is "one trillion, three hundred twenty-one billion, two hundred three million, one hundred thirty thousand, two hundred twenty-nine".