281125031338 has 16 divisors (see below), whose sum is σ = 435310073856. Its totient is φ = 136022083920.

The previous prime is 281125031267. The next prime is 281125031351. The reversal of 281125031338 is 833130521182.

It is a junction number, because it is equal to n+sod(n) for n = 281125031297 and 281125031306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471320 + ... + 1651372.

It is an arithmetic number, because the mean of its divisors is an integer number (27206879616).

Almost surely, 2^281125031338 is an apocalyptic number.

281125031338 is a deficient number, since it is larger than the sum of its proper divisors (154185042518).

281125031338 is a wasteful number, since it uses less digits than its factorization.

281125031338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205269.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 281125031338 in words is "two hundred eighty-one billion, one hundred twenty-five million, thirty-one thousand, three hundred thirty-eight".