23635550142131 has 4 divisors (see below), whose sum is σ = 23676512967912. Its totient is φ = 23594587316352.

The previous prime is 23635550142089. The next prime is 23635550142161. The reversal of 23635550142131 is 13124105553632.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23635550142131 is a prime.

It is a super-2 number, since 2×23635550142131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23635550142161) 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, 20481412025 + ... + 20481413178.

It is an arithmetic number, because the mean of its divisors is an integer number (5919128241978).

Almost surely, 2^{23635550142131} is an apocalyptic number.

23635550142131 is a deficient number, since it is larger than the sum of its proper divisors (40962825781).

23635550142131 is an equidigital number, since it uses as much as digits as its factorization.

23635550142131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40962825780.

The product of its (nonzero) digits is 324000, while the sum is 41.

Adding to 23635550142131 its reverse (13124105553632), we get a palindrome (36759655695763).

The spelling of 23635550142131 in words is "twenty-three trillion, six hundred thirty-five billion, five hundred fifty million, one hundred forty-two thousand, one hundred thirty-one".