20254381101 has 8 divisors (see below), whose sum is σ = 30006490560. Its totient is φ = 13502920716.

The previous prime is 20254381097. The next prime is 20254381153. The reversal of 20254381101 is 10118345202.

20254381101 is a `hidden beast` number, since 2 + 0 + 2 + 543 + 8 + 110 + 1 = 666.

It is not a de Polignac number, because 20254381101 - 2² = 20254381097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 750162263 = 20254381101 / (2 + 0 + 2 + 5 + 4 + 3 + 8 + 1 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20254381001) 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, 375081105 + ... + 375081158.

It is an arithmetic number, because the mean of its divisors is an integer number (3750811320).

Almost surely, 2^20254381101 is an apocalyptic number.

It is an amenable number.

20254381101 is a deficient number, since it is larger than the sum of its proper divisors (9752109459).

20254381101 is an equidigital number, since it uses as much as digits as its factorization.

20254381101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750162272 (or 750162266 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 20254381101 in words is "twenty billion, two hundred fifty-four million, three hundred eighty-one thousand, one hundred one".