281032848381 has 4 divisors (see below), whose sum is σ = 374710464512. Its totient is φ = 187355232252.

The previous prime is 281032848377. The next prime is 281032848401. The reversal of 281032848381 is 183848230182.

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 not a de Polignac number, because 281032848381 - 2² = 281032848377 is a prime.

It is a super-2 number, since 2×281032848381² (a number of 24 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 281032848381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281032848331) 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, 46838808061 + ... + 46838808066.

It is an arithmetic number, because the mean of its divisors is an integer number (93677616128).

Almost surely, 2^281032848381 is an apocalyptic number.

It is an amenable number.

281032848381 is a deficient number, since it is larger than the sum of its proper divisors (93677616131).

281032848381 is an equidigital number, since it uses as much as digits as its factorization.

281032848381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93677616130.

The product of its (nonzero) digits is 589824, while the sum is 48.

The spelling of 281032848381 in words is "two hundred eighty-one billion, thirty-two million, eight hundred forty-eight thousand, three hundred eighty-one".