135232401020 has 48 divisors (see below), whose sum is σ = 287324664480. Its totient is φ = 53458031616.

The previous prime is 135232400999. The next prime is 135232401077. The reversal of 135232401020 is 20104232531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3689504 + ... + 3725976.

It is an arithmetic number, because the mean of its divisors is an integer number (5985930510).

Almost surely, 2^135232401020 is an apocalyptic number.

135232401020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135232401020 is an abundant number, since it is smaller than the sum of its proper divisors (152092263460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135232401020 is a wasteful number, since it uses less digits than its factorization.

135232401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38654 (or 38652 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 135232401020 its reverse (20104232531), we get a palindrome (155336633551).

The spelling of 135232401020 in words is "one hundred thirty-five billion, two hundred thirty-two million, four hundred one thousand, twenty".