1231134253429 has 2 divisors, whose sum is σ = 1231134253430. Its totient is φ = 1231134253428.

The previous prime is 1231134253423. The next prime is 1231134253441. The reversal of 1231134253429 is 9243524311321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1148433722500 + 82700530929 = 1071650^2 + 287577^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231134253429 - 2¹⁹ = 1231133729141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231134253391 and 1231134253400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231134253423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615567126714 + 615567126715.

It is an arithmetic number, because the mean of its divisors is an integer number (615567126715).

Almost surely, 2^{1231134253429} is an apocalyptic number.

It is an amenable number.

1231134253429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231134253429 is an equidigital number, since it uses as much as digits as its factorization.

1231134253429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The spelling of 1231134253429 in words is "one trillion, two hundred thirty-one billion, one hundred thirty-four million, two hundred fifty-three thousand, four hundred twenty-nine".