40020102243403 has 2 divisors, whose sum is σ = 40020102243404. Its totient is φ = 40020102243402.

The previous prime is 40020102243367. The next prime is 40020102243449. The reversal of 40020102243403 is 30434220102004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40020102243403 is a prime.

It is not a weakly prime, because it can be changed into another prime (40020102243463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20010051121701 + 20010051121702.

It is an arithmetic number, because the mean of its divisors is an integer number (20010051121702).

Almost surely, 2^{40020102243403} is an apocalyptic number.

40020102243403 is a deficient number, since it is larger than the sum of its proper divisors (1).

40020102243403 is an equidigital number, since it uses as much as digits as its factorization.

40020102243403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40020102243403 its reverse (30434220102004), we get a palindrome (70454322345407).

The spelling of 40020102243403 in words is "forty trillion, twenty billion, one hundred two million, two hundred forty-three thousand, four hundred three".