280900101121 has 4 divisors (see below), whose sum is σ = 280910864644. Its totient is φ = 280889337600.

The previous prime is 280900101091. The next prime is 280900101173. The reversal of 280900101121 is 121101009082.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24114673521 + 256785427600 = 155289^2 + 506740^2 .

It is a cyclic number.

It is not a de Polignac number, because 280900101121 - 2²⁹ = 280363230209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280900101721) 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, 5342520 + ... + 5394841.

It is an arithmetic number, because the mean of its divisors is an integer number (70227716161).

Almost surely, 2^280900101121 is an apocalyptic number.

It is an amenable number.

280900101121 is a deficient number, since it is larger than the sum of its proper divisors (10763523).

280900101121 is a wasteful number, since it uses less digits than its factorization.

280900101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10763522.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 280900101121 in words is "two hundred eighty billion, nine hundred million, one hundred one thousand, one hundred twenty-one".