203344400120639 has 2 divisors, whose sum is σ = 203344400120640. Its totient is φ = 203344400120638.

The previous prime is 203344400120633. The next prime is 203344400120707. The reversal of 203344400120639 is 936021004443302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203344400120639 - 2⁴ = 203344400120623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203344400120596 and 203344400120605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203344400120633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101672200060319 + 101672200060320.

It is an arithmetic number, because the mean of its divisors is an integer number (101672200060320).

Almost surely, 2^{203344400120639} is an apocalyptic number.

203344400120639 is a deficient number, since it is larger than the sum of its proper divisors (1).

203344400120639 is an equidigital number, since it uses as much as digits as its factorization.

203344400120639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 203344400120639 in words is "two hundred three trillion, three hundred forty-four billion, four hundred million, one hundred twenty thousand, six hundred thirty-nine".