103281281031 has 8 divisors (see below), whose sum is σ = 137732485104. Its totient is φ = 68842132160.

The previous prime is 103281281021. The next prime is 103281281057. The reversal of 103281281031 is 130182182301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103281281031 - 2⁹ = 103281280519 is a prime.

It is a super-2 number, since 2×103281281031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103281281031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103281281011) 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, 2993790 + ... + 3028091.

It is an arithmetic number, because the mean of its divisors is an integer number (17216560638).

Almost surely, 2^103281281031 is an apocalyptic number.

103281281031 is a deficient number, since it is larger than the sum of its proper divisors (34451204073).

103281281031 is an equidigital number, since it uses as much as digits as its factorization.

103281281031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027601.

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 103281281031 in words is "one hundred three billion, two hundred eighty-one million, two hundred eighty-one thousand, thirty-one".