203139861383 has 2 divisors, whose sum is σ = 203139861384. Its totient is φ = 203139861382.

The previous prime is 203139861341. The next prime is 203139861391. The reversal of 203139861383 is 383168931302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203139861383 - 2¹² = 203139857287 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203139867383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101569930691 + 101569930692.

It is an arithmetic number, because the mean of its divisors is an integer number (101569930692).

Almost surely, 2^203139861383 is an apocalyptic number.

203139861383 is a deficient number, since it is larger than the sum of its proper divisors (1).

203139861383 is an equidigital number, since it uses as much as digits as its factorization.

203139861383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 203139861383 in words is "two hundred three billion, one hundred thirty-nine million, eight hundred sixty-one thousand, three hundred eighty-three".