20450154363013 has 4 divisors (see below), whose sum is σ = 20450351627968. Its totient is φ = 20449957098060.

The previous prime is 20450154363007. The next prime is 20450154363031. The reversal of 20450154363013 is 31036345105402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20450154363013 - 2¹³ = 20450154354821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450154363043) 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, 98476893 + ... + 98684338.

It is an arithmetic number, because the mean of its divisors is an integer number (5112587906992).

Almost surely, 2^{20450154363013} is an apocalyptic number.

It is an amenable number.

20450154363013 is a deficient number, since it is larger than the sum of its proper divisors (197264955).

20450154363013 is a wasteful number, since it uses less digits than its factorization.

20450154363013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197264954.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 20450154363013 its reverse (31036345105402), we get a palindrome (51486499468415).

The spelling of 20450154363013 in words is "twenty trillion, four hundred fifty billion, one hundred fifty-four million, three hundred sixty-three thousand, thirteen".