203981120487 has 12 divisors (see below), whose sum is σ = 307449805104. Its totient is φ = 130074917280.

The previous prime is 203981120449. The next prime is 203981120507. The reversal of 203981120487 is 784021189302.

It is a happy number.

203981120487 is a `hidden beast` number, since 20 + 39 + 8 + 112 + 0 + 487 = 666.

It is not a de Polignac number, because 203981120487 - 2¹⁸ = 203980858343 is a prime.

It is a super-2 number, since 2×203981120487² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203981120437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 492707814 + ... + 492708227.

It is an arithmetic number, because the mean of its divisors is an integer number (25620817092).

Almost surely, 2^203981120487 is an apocalyptic number.

203981120487 is a deficient number, since it is larger than the sum of its proper divisors (103468684617).

203981120487 is a wasteful number, since it uses less digits than its factorization.

203981120487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985416070 (or 985416067 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 203981120487 in words is "two hundred three billion, nine hundred eighty-one million, one hundred twenty thousand, four hundred eighty-seven".