135621106211304 has 80 divisors (see below), whose sum is σ = 434131054288800. Its totient is φ = 38748887487648.

The previous prime is 135621106211299. The next prime is 135621106211323. The reversal of 135621106211304 is 403112601126531.

135621106211304 is a `hidden beast` number, since 1 + 3 + 5 + 6 + 2 + 1 + 10 + 621 + 13 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14949411934 + ... + 14949421005.

It is an arithmetic number, because the mean of its divisors is an integer number (5426638178610).

Almost surely, 2^{135621106211304} is an apocalyptic number.

135621106211304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

135621106211304 is an abundant number, since it is smaller than the sum of its proper divisors (298509948077496).

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

135621106211304 is a wasteful number, since it uses less digits than its factorization.

135621106211304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29898832964 (or 29898832951 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 135621106211304 its reverse (403112601126531), we get a palindrome (538733707337835).

The spelling of 135621106211304 in words is "one hundred thirty-five trillion, six hundred twenty-one billion, one hundred six million, two hundred eleven thousand, three hundred four".