38404121111 has 2 divisors, whose sum is σ = 38404121112. Its totient is φ = 38404121110.

The previous prime is 38404121101. The next prime is 38404121143. The reversal of 38404121111 is 11112140483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38404121111 - 2¹⁴ = 38404104727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38404121101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19202060555 + 19202060556.

It is an arithmetic number, because the mean of its divisors is an integer number (19202060556).

Almost surely, 2^38404121111 is an apocalyptic number.

38404121111 is a deficient number, since it is larger than the sum of its proper divisors (1).

38404121111 is an equidigital number, since it uses as much as digits as its factorization.

38404121111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

Adding to 38404121111 its reverse (11112140483), we get a palindrome (49516261594).

The spelling of 38404121111 in words is "thirty-eight billion, four hundred four million, one hundred twenty-one thousand, one hundred eleven".