20344513142261 has 8 divisors (see below), whose sum is σ = 25364587813824. Its totient is φ = 15852867383520.

The previous prime is 20344513142183. The next prime is 20344513142311. The reversal of 20344513142261 is 16224131544302.

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

It is a cyclic number.

It is not a de Polignac number, because 20344513142261 - 2¹⁴ = 20344513125877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344512142261) 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, 132107228120 + ... + 132107228273.

It is an arithmetic number, because the mean of its divisors is an integer number (3170573476728).

Almost surely, 2^{20344513142261} is an apocalyptic number.

It is an amenable number.

20344513142261 is a deficient number, since it is larger than the sum of its proper divisors (5020074671563).

20344513142261 is a wasteful number, since it uses less digits than its factorization.

20344513142261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264214456411.

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 20344513142261 its reverse (16224131544302), we get a palindrome (36568644686563).

The spelling of 20344513142261 in words is "twenty trillion, three hundred forty-four billion, five hundred thirteen million, one hundred forty-two thousand, two hundred sixty-one".