20100054601331 has 4 divisors (see below), whose sum is σ = 20190189375552. Its totient is φ = 20009919827112.

The previous prime is 20100054601247. The next prime is 20100054601423. The reversal of 20100054601331 is 13310645000102.

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

It is a cyclic number.

It is not a de Polignac number, because 20100054601331 - 2²² = 20100050407027 is a prime.

It is a super-2 number, since 2×20100054601331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20100054601331.

It is not an unprimeable number, because it can be changed into a prime (20100054601931) 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, 45067386776 + ... + 45067387221.

It is an arithmetic number, because the mean of its divisors is an integer number (5047547343888).

Almost surely, 2^{20100054601331} is an apocalyptic number.

20100054601331 is a deficient number, since it is larger than the sum of its proper divisors (90134774221).

20100054601331 is an equidigital number, since it uses as much as digits as its factorization.

20100054601331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90134774220.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 20100054601331 its reverse (13310645000102), we get a palindrome (33410699601433).

The spelling of 20100054601331 in words is "twenty trillion, one hundred billion, fifty-four million, six hundred one thousand, three hundred thirty-one".