12402434087 has 2 divisors, whose sum is σ = 12402434088. Its totient is φ = 12402434086.

The previous prime is 12402434081. The next prime is 12402434171. The reversal of 12402434087 is 78043420421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12402434087 - 2⁸ = 12402433831 is a prime.

It is a super-4 number, since 4×12402434087⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12402434081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201217043 + 6201217044.

It is an arithmetic number, because the mean of its divisors is an integer number (6201217044).

Almost surely, 2^12402434087 is an apocalyptic number.

12402434087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12402434087 is an equidigital number, since it uses as much as digits as its factorization.

12402434087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 35.

The spelling of 12402434087 in words is "twelve billion, four hundred two million, four hundred thirty-four thousand, eighty-seven".