1331200023229 has 2 divisors, whose sum is σ = 1331200023230. Its totient is φ = 1331200023228.

The previous prime is 1331200023191. The next prime is 1331200023253. The reversal of 1331200023229 is 9223200021331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 821406879225 + 509793144004 = 906315^2 + 713998^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331200023229 - 2²⁷ = 1331065805501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331200023197 and 1331200023206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331200023289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665600011614 + 665600011615.

It is an arithmetic number, because the mean of its divisors is an integer number (665600011615).

Almost surely, 2^{1331200023229} is an apocalyptic number.

It is an amenable number.

1331200023229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331200023229 is an equidigital number, since it uses as much as digits as its factorization.

1331200023229 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 28.

The spelling of 1331200023229 in words is "one trillion, three hundred thirty-one billion, two hundred million, twenty-three thousand, two hundred twenty-nine".