428312131139 has 2 divisors, whose sum is σ = 428312131140. Its totient is φ = 428312131138.

The previous prime is 428312131111. The next prime is 428312131147. The reversal of 428312131139 is 931131213824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428312131139 - 2¹⁶ = 428312065603 is a prime.

It is not a weakly prime, because it can be changed into another prime (428312131109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214156065569 + 214156065570.

It is an arithmetic number, because the mean of its divisors is an integer number (214156065570).

Almost surely, 2^428312131139 is an apocalyptic number.

428312131139 is a deficient number, since it is larger than the sum of its proper divisors (1).

428312131139 is an equidigital number, since it uses as much as digits as its factorization.

428312131139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The spelling of 428312131139 in words is "four hundred twenty-eight billion, three hundred twelve million, one hundred thirty-one thousand, one hundred thirty-nine".