995012403021 has 384 divisors, whose sum is σ = 1991805763584. Its totient is φ = 481940616960.

The previous prime is 995012403019. The next prime is 995012403089. The reversal of 995012403021 is 120304210599.

995012403021 is a `hidden beast` number, since 99 + 501 + 2 + 40 + 3 + 0 + 21 = 666.

It is not a de Polignac number, because 995012403021 - 2¹ = 995012403019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (995012403221) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 3515944746 + ... + 3515945028.

It is an arithmetic number, because the mean of its divisors is an integer number (5186994176).

Almost surely, 2^995012403021 is an apocalyptic number.

995012403021 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

995012403021 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

995012403021 is a wasteful number, since it uses less digits than its factorization.

995012403021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 995012403021 in words is "nine hundred ninety-five billion, twelve million, four hundred three thousand, twenty-one".