135550401044121 has 12 divisors (see below), whose sum is σ = 223765741406272. Its totient is φ = 77457372025176.

The previous prime is 135550401044101. The next prime is 135550401044269. The reversal of 135550401044121 is 121440104055531.

135550401044121 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 504 + 0 + 104 + 41 + 2 + 1 = 666.

It is not a de Polignac number, because 135550401044121 - 2²¹ = 135550398946969 is a prime.

It is a super-2 number, since 2×135550401044121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135550401044101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1075796833621 + ... + 1075796833746.

Almost surely, 2^{135550401044121} is an apocalyptic number.

It is an amenable number.

135550401044121 is a deficient number, since it is larger than the sum of its proper divisors (88215340362151).

135550401044121 is a wasteful number, since it uses less digits than its factorization.

135550401044121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151593667380 (or 2151593667377 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 135550401044121 its reverse (121440104055531), we get a palindrome (256990505099652).

The spelling of 135550401044121 in words is "one hundred thirty-five trillion, five hundred fifty billion, four hundred one million, forty-four thousand, one hundred twenty-one".