11655110342121 has 8 divisors (see below), whose sum is σ = 15618238315200. Its totient is φ = 7731027965232.

The previous prime is 11655110342081. The next prime is 11655110342143. The reversal of 11655110342121 is 12124301155611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11655110342121 - 2¹⁴ = 11655110325737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11655110442121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9761398350 + ... + 9761399543.

It is an arithmetic number, because the mean of its divisors is an integer number (1952279789400).

Almost surely, 2^{11655110342121} is an apocalyptic number.

It is an amenable number.

11655110342121 is a deficient number, since it is larger than the sum of its proper divisors (3963127973079).

11655110342121 is a wasteful number, since it uses less digits than its factorization.

11655110342121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19522798095.

The product of its (nonzero) digits is 7200, while the sum is 33.

Adding to 11655110342121 its reverse (12124301155611), we get a palindrome (23779411497732).

The spelling of 11655110342121 in words is "eleven trillion, six hundred fifty-five billion, one hundred ten million, three hundred forty-two thousand, one hundred twenty-one".