12001401389 has 2 divisors, whose sum is σ = 12001401390. Its totient is φ = 12001401388.

The previous prime is 12001401341. The next prime is 12001401409. The reversal of 12001401389 is 98310410021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11646078889 + 355322500 = 107917^2 + 18850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001401389 is a prime.

It is a super-2 number, since 2×12001401389² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001401589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000700694 + 6000700695.

It is an arithmetic number, because the mean of its divisors is an integer number (6000700695).

Almost surely, 2^12001401389 is an apocalyptic number.

It is an amenable number.

12001401389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001401389 is an equidigital number, since it uses as much as digits as its factorization.

12001401389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 12001401389 in words is "twelve billion, one million, four hundred one thousand, three hundred eighty-nine".