40102104343421 has 2 divisors, whose sum is σ = 40102104343422. Its totient is φ = 40102104343420.

The previous prime is 40102104343391. The next prime is 40102104343451. The reversal of 40102104343421 is 12434340120104.

It is a balanced prime because it is at equal distance from previous prime (40102104343391) and next prime (40102104343451).

It can be written as a sum of positive squares in only one way, i.e., 20943537640921 + 19158566702500 = 4576411^2 + 4377050^2 .

It is a cyclic number.

It is not a de Polignac number, because 40102104343421 - 2¹⁴ = 40102104327037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40102104343451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20051052171710 + 20051052171711.

It is an arithmetic number, because the mean of its divisors is an integer number (20051052171711).

Almost surely, 2^{40102104343421} is an apocalyptic number.

It is an amenable number.

40102104343421 is a deficient number, since it is larger than the sum of its proper divisors (1).

40102104343421 is an equidigital number, since it uses as much as digits as its factorization.

40102104343421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 40102104343421 its reverse (12434340120104), we get a palindrome (52536444463525).

The spelling of 40102104343421 in words is "forty trillion, one hundred two billion, one hundred four million, three hundred forty-three thousand, four hundred twenty-one".