103009799981 has 24 divisors (see below), whose sum is σ = 114238156032. Its totient is φ = 92809745600.

The previous prime is 103009799953. The next prime is 103009799989. The reversal of 103009799981 is 189997900301.

It is not a de Polignac number, because 103009799981 - 2⁶ = 103009799917 is a prime.

It is a super-2 number, since 2×103009799981² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103009799989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13580516 + ... + 13588098.

It is an arithmetic number, because the mean of its divisors is an integer number (4759923168).

Almost surely, 2^103009799981 is an apocalyptic number.

103009799981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103009799981 is a deficient number, since it is larger than the sum of its proper divisors (11228356051).

103009799981 is a wasteful number, since it uses less digits than its factorization.

103009799981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593 (or 8582 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 56.

The spelling of 103009799981 in words is "one hundred three billion, nine million, seven hundred ninety-nine thousand, nine hundred eighty-one".