135123371156 has 12 divisors (see below), whose sum is σ = 236601267168. Its totient is φ = 67523009112.

The previous prime is 135123371153. The next prime is 135123371189. The reversal of 135123371156 is 651173321531.

It is a super-3 number, since 3×135123371156³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135123371153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9661256 + ... + 9675231.

It is an arithmetic number, because the mean of its divisors is an integer number (19716772264).

Almost surely, 2^135123371156 is an apocalyptic number.

It is an amenable number.

135123371156 is a deficient number, since it is larger than the sum of its proper divisors (101477896012).

135123371156 is a wasteful number, since it uses less digits than its factorization.

135123371156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19338238 (or 19338236 counting only the distinct ones).

The product of its digits is 56700, while the sum is 38.

Adding to 135123371156 its reverse (651173321531), we get a palindrome (786296692687).

The spelling of 135123371156 in words is "one hundred thirty-five billion, one hundred twenty-three million, three hundred seventy-one thousand, one hundred fifty-six".