11420040020387 has 2 divisors, whose sum is σ = 11420040020388. Its totient is φ = 11420040020386.

The previous prime is 11420040020359. The next prime is 11420040020443. The reversal of 11420040020387 is 78302004002411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11420040020387 - 2¹² = 11420040016291 is a prime.

It is a super-2 number, since 2×11420040020387² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11420040020317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710020010193 + 5710020010194.

It is an arithmetic number, because the mean of its divisors is an integer number (5710020010194).

Almost surely, 2^{11420040020387} is an apocalyptic number.

11420040020387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11420040020387 is an equidigital number, since it uses as much as digits as its factorization.

11420040020387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

Adding to 11420040020387 its reverse (78302004002411), we get a palindrome (89722044022798).

The spelling of 11420040020387 in words is "eleven trillion, four hundred twenty billion, forty million, twenty thousand, three hundred eighty-seven".