203980370247 has 6 divisors (see below), whose sum is σ = 294638312592. Its totient is φ = 135986913492.

The previous prime is 203980370213. The next prime is 203980370257. The reversal of 203980370247 is 742073089302.

203980370247 is a `hidden beast` number, since 2 + 0 + 39 + 8 + 0 + 370 + 247 = 666.

It is not a de Polignac number, because 203980370247 - 2¹² = 203980366151 is a prime.

It is a super-2 number, since 2×203980370247² (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 (203980370207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11332242783 + ... + 11332242800.

It is an arithmetic number, because the mean of its divisors is an integer number (49106385432).

Almost surely, 2^203980370247 is an apocalyptic number.

203980370247 is a deficient number, since it is larger than the sum of its proper divisors (90657942345).

203980370247 is a wasteful number, since it uses less digits than its factorization.

203980370247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22664485589 (or 22664485586 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 203980370247 in words is "two hundred three billion, nine hundred eighty million, three hundred seventy thousand, two hundred forty-seven".