303973000138 has 8 divisors (see below), whose sum is σ = 482780647332. Its totient is φ = 143046117696.

The previous prime is 303973000129. The next prime is 303973000153. The reversal of 303973000138 is 831000379303.

It can be written as a sum of positive squares in 2 ways, for example, as 303648387849 + 324612289 = 551043^2 + 18017^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 303973000097 and 303973000106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4470191145 + ... + 4470191212.

Almost surely, 2^303973000138 is an apocalyptic number.

303973000138 is a deficient number, since it is larger than the sum of its proper divisors (178807647194).

303973000138 is a wasteful number, since it uses less digits than its factorization.

303973000138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8940382376.

The product of its (nonzero) digits is 40824, while the sum is 37.

It can be divided in two parts, 303 and 973000138, that added together give a triangular number (973000441 = T₄₄₁₁₃).

The spelling of 303973000138 in words is "three hundred three billion, nine hundred seventy-three million, one hundred thirty-eight", and thus it is an aban number.