135225131123 has 2 divisors, whose sum is σ = 135225131124. Its totient is φ = 135225131122.

The previous prime is 135225131117. The next prime is 135225131137. The reversal of 135225131123 is 321131522531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135225131123 - 2¹⁸ = 135224868979 is a prime.

It is a super-2 number, since 2×135225131123² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135225131183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67612565561 + 67612565562.

It is an arithmetic number, because the mean of its divisors is an integer number (67612565562).

Almost surely, 2^135225131123 is an apocalyptic number.

135225131123 is a deficient number, since it is larger than the sum of its proper divisors (1).

135225131123 is an equidigital number, since it uses as much as digits as its factorization.

135225131123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

Adding to 135225131123 its reverse (321131522531), we get a palindrome (456356653654).

The spelling of 135225131123 in words is "one hundred thirty-five billion, two hundred twenty-five million, one hundred thirty-one thousand, one hundred twenty-three".