12007421357 has 2 divisors, whose sum is σ = 12007421358. Its totient is φ = 12007421356.

The previous prime is 12007421333. The next prime is 12007421401. The reversal of 12007421357 is 75312470021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8410540681 + 3596880676 = 91709^2 + 59974^2 .

It is a cyclic number.

It is not a de Polignac number, because 12007421357 - 2²² = 12003227053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12007021357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6003710678 + 6003710679.

It is an arithmetic number, because the mean of its divisors is an integer number (6003710679).

Almost surely, 2^12007421357 is an apocalyptic number.

It is an amenable number.

12007421357 is a deficient number, since it is larger than the sum of its proper divisors (1).

12007421357 is an equidigital number, since it uses as much as digits as its factorization.

12007421357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

Adding to 12007421357 its reverse (75312470021), we get a palindrome (87319891378).

The spelling of 12007421357 in words is "twelve billion, seven million, four hundred twenty-one thousand, three hundred fifty-seven".